I see what happen, the "direct to me" means you have to do the work. That means making sure you know what you doing with paypal and Stripe. So in a nutshell. you are the marchant of record, you are the one that hads to work with the problems and make sure everything runs well. Never pick this if you are not experince with payments from many places.
You said you were using paypal cash account which is a personal account not a merchmat account: https://www.paypal.com/us/webapps/mpp/merchant
https://www.paypal.com/us/smarthelp/article/what-is-the-difference-between-perso...
So what you want to do is switch to "Collected by itch.io" otherwise follow these steps to make a merchant account. BUT you will have to be responsable for everything, the tax, following laws, liable for chargebacks, VAT, etc.