I've been there for sure. In my experience, Lexapro is likely the culprit. There's a reason I quit it haha

Try cutting the dose down by about half? That might take the edge off of the mental spiral but also help with your other problem. If that doesn't work, I'd try to gradually stop it all together.

You can always try other meds and combos if you feel like you need it. Buspirone with Wellbutrin (I know you said you already take Wellbutrin) seems to do the same for me that Lexapro did. Sadly, everyone is different so it's really a trial by error process.

I wish you luck!