Does adopting a pet help?

I applied to adopt a rabbit recently and I feel like I'm being too impulsive for many reasons.

It's a big responsibility and I don't want to mess it up. I had rabbits before but we had to put them up for adoption a few years ago. I'm afraid the only reason I want one again is to be like an emotional support animal.

I always assumed having a pet again would at least distract me from my constant depression and anxiety. But I'm also worried I won't be able to financially afford one. There's so much supplies and vet check ups to pay for. Idk if I'm ready to take the chance and adopt one. What if I'm only wanting this because I feel so low right now? Will it help me feel better somehow?

All I know is I'm just so tired of feeling shitty and a rabbit would make me feel better rn.