finally getting birth control

Alecsa
So I'm finally getting birth control today but I'm pretty nervous. I have a history of eating disorders and anxiety, so the prospect of taking something that could make me gain weight or exacerbate my emotions is really scary right now, even though it's less scary than getting pregnant.
 I want to get an iud in the future (my primary provider doesn't do insertion though so finding someone within my price range is tough), but in the meantime does anyone have advice?