You already got screwed up by leaving funds on a custodial service in the past, and you pretty much did the same mistake. You've already been in this space for more than 3 years, you should've known the risks of leaving funds on a custodial wallet/exchange by now. Especially Coinbase? Quite notorious for locking up accounts.
But anyway, since they're disabling your account, they
probably smelled something fishy. All you can do right now is to wait and wish they respond soon.
You might want to check this out though:
https://NotYourKeys.org/I'm not surprised, I've seen newbies telling me that coinbase wallet is better than trust wallet lol, they can't even tell the difference that's why they got caught in such bad shape, they don't know about private keys and recovery seeds if not they won't dare leave their coins in the hands of a centralized platform