Im sorry to hear hun *hugs*. I hope you will feel better and be able to believe in yourself more

You are absolutely allowed to take a break from commissions if you feel you need to; burnout can really sneak up on you

But never forget, you are an incredibly talented artist, and an incredibly loved one at that. Depression sucks, but we're all here to help you get through it

Take a break from them and focus on your own health, we'll be around when you're ready to create again.
I know I went through a similar head space a few years ago and sometimes taking a step back to just breathe and recover can do wonders.

Been a long time since we talked, but speaking from first-hand experience with depression... I know the voices in your head that are negative are loud. I know it feels like a struggle every day to just have the energy to exist. But don't give up, ok? If you can't trust your own head, trust those that follow and support you instead, yeah?