How to handle catholic guilt?

So, as usualy, when I'm back from collage town to my religious family's home I'm depressed and surrounded by the whole religious household while being an atheist thing.

I also have a new wave of catholic guilt that's absolutely crippling me about literally anything and everything. How do you guys deal with it? I'm paralyzed from gaming to studying even sitting around not doing anything feels wrong but unable to do anything cause everything feels wrong and guilty about anything that brings the tiniest hint of pleasure (not sexyal obv)

Thank you for replies upfront.