I'm wondering if you've considered SubscribeStar as another outlet point?
I don't know the details of why Itch started blocking your payments, & you may well have your needs covered by Steam & Patreon, it just happens personally my (new since Itch did what it did) go-to for adult stuff is the aforementioned Subscribestar & they do seem really interested in catering to adult creators moreso than the other venues