SUBREDDIT: r/relationships
TITLE: I'm (21/F) in need of advice regarding relationship with boyfriend (22/M)
POST: So, here's the thing- my boyfriend and I have been dating for two years. But he wants me to change a few things about me:

- my weight- as in he wants me to lose weight. 

- my self esteem- it's totally non existent, and has been for a long time

- the way I handle things- I stress out very easily. For example, I lost my flash drive today, and I panicked and cried a lot; especially since I major in graphic design, so there were a few large projects on that file.

It's to the point where he's very stressed about it, and I fear that he will be so sick of my shit that he'll break up with me.

Any advice about these topics and how to change them would be appreciated...
TL;DR: 
need advice on losing weight, raising self esteem and reacting to things better because of boyfriend, and in need of any advice