I got prescribed some anxiety medication, but I don't know if I want to take cause she said it might make me fat.

They may increase your appetite, but if you take that into consideration and watch what you eat, you should be fine.

I gained ALOT of weight but the meds worked so my dr put me on metformin for metabolic changes & said it won't cause me to lose weight so I'll have to work to get the weight off but it will prevent me from continuing to gain.

I hate to tell people what to do ,but I never took them and yeah, I'm still anxious and I'm not skinny, though- I have diabetes and since they put me on insulin which I might be able to go off soon I of course gained weight.
Some say cognitive therapy is good?

Try them at least. It could improve your quality of life. You've not been in a good place for a long time, so worth trying.

Some medicines cause stretchmarks. Might want to ask if theres a chance of that.

If it works it can really be life changing....

It will only make you gain weight if you let yourself eat more. It just makes you hungry.