Where were you imprisoned? Sounded like China but I don't think you ever said outright.
Are you still there or have you come to the US? If you're still there, are you trying to get to the US? Do you have a safe and assured way to do that? How long will it take? A lot of your options are going to depend on what country you're in.
You said you don't have a working CC, but you at least have some money somewhere right? And you have access to it, and the ability to move it around?
No, not China. I was imprisoned in a western EU country. The things that happened I had considered impossible in a rule of law country. I am a dual citizen, otherwise it would have been impossible to arrest me. I have family here and I am still in this country. Not in the same federal state but still in the same country. When I was released out of the blue I felt like leaving immediately but after some hours decided to travel to my family. I have 2k USD in cash with me. So no worries. I have a place to sleep for a few days and money. I expect to have a EU CC working within 1 or 2 days. I will fly to the US in 1 month, maybe two. Don't know yet. Everything is difficult. I had a fiancee before I got arrested etc.
You probably want to contact Google support and try to recover your account as soon as possible, because once you leave the country you're going to have an extra fraud-hoop to jump through if you try to regain access from a country other than the one that the account was primarily used from. Google is pretty notorious for locking people out of their accounts and being useless about recovering them, so you want as few red flags as possible.
Sorry this happened to you. It sounds terrible and I wish you the best.