starting again For real this time...Need some advice

Don't eat clean. Clean eating is a restrictive diet and completely unnecessary. It's actually easier to fall off the wagon when you eat clean because you deprive yourself of foods that you love and eating the same "clean" foods over and over again gets boring and tired.

I think you have mixed up TDEE and BMR. Your TDEE is your Total Daily Energy Expenditure. Your BMR is your Basal Metabolic Rate. The BMR is just the calories your body burns everyday for life preserving functions such as brain function, heart function, respiration, etc, basically non movement calorie burn. 2150 sounds about right if you're talking about your TDEE. May I ask what you used to calculate that? There are different ways of getting your TDEE, some more accurate than others. It's usually recommended that you don't exceed a calorie deficit of 20% below TDEE. If 2150 is accurate, then that would put your calorie goal at 1720. It's important to make sure you are eating enough protein and enough dietary fat as they are both really important when losing weight and otherwise. These are calculated based on body weight. For your body weight of 119lbs, your recommended protein intake would be 98g and your recommended dietary fat intake would be 48g. The calculations are 0.82g of protein per lb of body weight, and 0.4g of fat per lb of body weight. If your calorie goal is 1720 and that would leave you 224g of carbs.

I agree, don't "eat clean" rather "eat right for you". In my book, right for you is learning to incorporate the foods you don't want to do without into your daily calories, or weekly calories, or perhaps monthly calories (depending on how often you "need" these foods).

I stick with the 80/20 rule. I'm good 80% of the time and not so good 20% of the time. My weight loss to date has been changing the eating habits and attempts at becoming an emotional exerciser. In changing the habits, I still go and have my fast food because there are days that for one reason or another I cannot go without the "junk". I've found that if I give myself permission to workout the way I like to, then I really like being at the gym. Of course for me it's rather time consuming which is why I'm still learning to give myself permission. I like to spend an hour on a cardio machine (elliptical is the easiest on my knees) and then go and do my weights (usually in machine form and both arms and legs). I will give myself at least 1 rest day before I do weights again. I've found that I get on a roll with my weights which is why I do upper and lower body on the same day. I am working toward alternating which will give the body the rest time while also enjoying a shortened gym time.

Find a good TDEE calculator if you wish to have a set calorie goal daily. If you let MFP set it, then you need to make sure to eat back at least 1/2 your exercise calories because otherwise you're not eating enough fuel and you won't get the results you want.

Yes, eating certain amounts in certain categories daily is recommended. The main one I always hear about is Protein which makes sense. Lean protein helps when you're strength training. I'm not a doctor, dietician or nutritionist so I hope I've read it right in that the lean protein helps with the building (which looks mainly like toning on women) of muscle.

Also on a lifestyle change (rather than just fad diets), water is your friend. It's really amazing how not drinking enough really can mess up weight loss. It's usually a temporary thing (think water retention here). But again, reading up on it, a lot of habitual dieters (and perhaps most people) mistake thirst for hunger.

You can do this but don't fall into the "diet" mentality you've grown accustom to. Learn to eat everything in moderation. It can be done.

I'm 5'2" and lose weight consistently eating 1650 calories as long as I eat my version of "clean". For me, personally, it was about more than cals in vs. cals out and switching to a more whole food diet suited me more. I had to cut out a lot of the things that fall into the "not clean" category due to health reasons, I'm allergic to most of it. As long as I eat real foods most days (6 out of 7) I will always lose weight. =D I think you'll do fine at 1650 and find what works for you!