How can I lose 30lbs?

Have you ever done HIIT?

Samantha gave you good advice above. I'll only add to be patient. You didn't gain the extra weight quickly, so don't expect it to come off quickly either. Just aim for a downward trend in your weight and you will do fine.

The basic principal on My Fitness Pal is Calorie Deficit, based on measurement of Calories In and Calories Out. If you take in less calories based on what you eat, and burn more calories through exercise, you'll eventually lose weight.

It is perhaps best to watch your portion sizes, rather than eliminate specific foods, as that could cause cravings and feelings of hunger.

They a few things you can do to lose a few pounds! Dieting is one of them, that probably crossed your mind since you're here.

I won't go over what others have already said on that topic, but do set up MFP and try your best to track everything you eat. It'll give you great insight on where most of your calories are coming from and what to tweak. Don't be bummed out if you fail, just keep trying, and you'll get into it!

Other then that, I do recommend some kind of exercise. You don't have to do any weight lifting if you don't want to or any intense cardio! I always recommend long walks out side, 40 min+, or even incline walking on a treadmill for 30minutes everyday. There are so many other benefits to this other then losing weight that it would be shame not too!

I combined my diet, cardio, and weight lifting and I was able to drop 30lbs in a few months. I'm sure you are able to do so as well!

The best advice I can give is this...

One bite at a time, One meal at a time. One day at a time, one week at a time.

That is, don't focus on the thirty pounds, just focus on hitting the figures MFP targets for you.

Log everything you put in your face, accurately. Buy accurate scales, log in exact grams or ml's for fluids.

And just be patient, it'll work. Took me nearly 3 years to lose 57kg (around 125lb I think, I don't work in archaic measurements) before going into 'maintenance' mode for a couple of years... But I never focused on the end target, just on smaller, closer, more achieveable ones... Like not having a cookie with my mug of coffee, or putting one less potato on the plate than I wanted to, and filling the space with som veggies instead.

Three years for what I lost might seem a long time, but hey... It took me 48 years to get that fat in the first place, so repairing the damage in 3 was great...