New here and looking for support

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Hi, my name is Courtney. I'm 24, a full time college student and a full time worker at my local hospital. I've been overweight my entire life but I've recently hit a wall that I thought enough was enough and it was time for me to take charge of my own health.
I have PCOS, acute anxiety and I try to excerise when I can but I'm struggling mainly with adjusting my diet since I am a little picky and I don't really know what's "bad/good" fruits, carbs, etc.

I appreciate any help and thanks!