Young and loose skin muscle loss after loosing 31+ pounds?

Undereating for your level of activity and your body, not eating enough protein, and not doing resistance training, is exactly why you indeed lose muscle mass.

It's actually very easy to burn off muscle mass doing things wrong.

And it really stinks, because that is a major part of your metabolism, which means it's lower than it needed to be right now.

If you think you still have a few lbs to go, you need to change to your goals to 1/2 lb weekly, unless you feel like purely losing weight, even when some of that is muscle weight.

Oh, ask some of the women on here how they feel in their 50's and 60's having yo-yo dieted their life away having a terrible relationship with food.

You are going down that path right now, if you'd rather lose weight even if it's muscle to reach a number on a scale no one sees, not just fat.

How long since you lost the weight? It can take up to 2 years for your skin to catch up

Heybales, everyone has always told me that 1,200 calories is alright? I selected two which I didn't think was bad.
my school we don't have bells and we stay in the same room with the same students until we go home we just sit, so I don't get to move alot and I thought eating 1,200 calories would make sense because I don't move at school a whole lot you know what I mean?.

How do I know why i'm not going to yo-yo diet away...for one 1.) I know myself.
yo-yo dieting is when you loose and gain from following with unhealthy under eating habits.

2.)I'm not gaining.....and loosing....3.)and I'm eating enough, 4.)it's what what mfp and others yessed to to eat 1,200 if I'm not moving around most days?.
that's how I know.

Then let me inform you that you are incorrect on some of that then. You frankly have neither the knowledge nor the experience, hence the reason you selected 2 lb goal with the smaller amount to lose - you did NOT know, and didn't want to follow what says recommended.
No where have you said you correctly ate back exercise calories, probably because you didn't, you keep referring to eating 1200 in total. Again incorrect, and if the fact your daily eating goal went up and you didn't understand and question and research, but assumed you knew better, again wrong.

And no where have I said you are yo-yo dieting right now or have - that is the potential future if you do things wrong, burn off muscle mass, try to eat at maintenance and discover you can barely eat anything, in a year or two you've gained back some or all or more of the weight, and you attempt to do it again.

1200 is the recommended LOWEST you should go, not the upper goal - for a sedentary woman to get all her nutritional needs in with a average diet.
Basically, it is for safety for sedentary woman. You are more than sedentary if you exercise.

Much like minimum building codes are for safety. Not for longevity, performance, or aesthetics. You can always have better than minimum done.

You want longer life, better performance, look better - don't do the minimum.

You comment you didn't do it fast?
What is your definition of fast? One extreme and impossible definition was given that you at least said you didn't match, so that's good.
But how would you know what is fast or slow if you didn't research and find out?

Sorry I couldn't scare you, because that's sadly what it takes with some to realize the precarious position they have put themselves in, and the potential for going down a very bad path.

how old are you? & how long did it take you to lose 30 pounds?

Hahaha, alright dr.bales.
I am such a big liar, and I want to hurt myself I'm this monster.

thanks I think.
for respectfully, positively, supportively encouraging me because you care so much.
It's almost like you knew me all my life.

Were the people that thought the earth was flat lying - or uninformed?

No where did I say you are lying, which means you are reading this emotionally and adding your own flavor to words. There is a difference between knowing one thing and saying another, and fooling yourself because you don't know.

No where did I say you were trying to hurt yourself purposely because of a disorder, but that doesn't mean you can't by doing things wrong you aren't aware of.

Is support and encouragement only what propels you down the road you want to take, which is easy - you go girl!

Or is true positive support and encouragement seeing you could, by your limited descriptions, be going down the wrong road and trying to spell out why it isn't right? Because frankly I doubt you would accept and follow just a recommendation, though you did follow the 1200 blindly it might appear.

Is the fact you did lose weight already prove that you were on the right road? Because you obviously did a good job following a program and sticking to it and seeing success on the scale.

And every woman that reflects back on their yo-yo dieting after years and realizes they don't want to do that again in the same manner, proves they were not on the right road despite the end result. But each time they did it they probably thought, this is working again, I'm on the right road again.
You'll see that in the forums from many women that are likely doomed to repeat their effort again, because they say things like "well it worked the 3 other times I lost weight, so it'll work for you, so here's this advice .....". So while it is advice based on experience, it's only great experience because they keep repeating the same failed program again and again.

So a few simple questions that can help to know if you are on the wrong road or not.

Forget an uninformed opinion of fast or slow, how many pounds was lost in what time frame?

Did you eat in total around 1200 or less daily during that time (not NET which MFP uses, gross, total)?

How much protein, as % of that 1200 or whatever you ate in total, did you usually end up eating?

Did you do any resistance training as exercise?

What was your exercise, how often?