Wrong thread, but how are you going about measuring everything? Via prepackaged label amounts vs various ingredients put into a calc into what your making? I'm sure the WL thread will cover it better than me, but the very common refrain, is the vast amount of people often understimate. Not always their fault. A banana might be listed as 100 calories, but naturally can deviate from 75-150 (Amount made up, but produce does naturally vary in sugar content and size)
I really like a few of the things from this guy, and if you can do a weeks prep (and follow a few other video's for plenty of portioned ready to go freezer items) that should help a lot.
If you want pure calorie burn, the weights will accomplish more if you can push through and nuke your whole body, though cardio has more indirect benefits. (Not looking pathetic after 2 flights of stairs winds you kinda thing, I know a semi pro body builder that even takes the elevator down the stairs.
No simp, not going to pretend I'd pin your photo up somewhere, but if you were someone I bumped into and sparked a bit wouldn't have any complaints throwing down. As others have said elsewhere, it's tough for ladies but you need to grow a dash of assertiveness and just self confidence overall seems like the bigger thing holding you back more than anything else about ya.