not crazy, its fear of being isolated and thats totally understandable. ardYou are feeling a sort of crisis, only because the reality seemed too real, you sometime (we all do it) hallucinate for a bit, like its hard to make sense of it, and its also probaly fear of failing to fit in, kind of like a wish that all the hard work is not needed. Indeed, the reality is (Deaf) people who grew up Deaf will find it hard to understand, (or dont understand) what's its like being a fish flew out of water suddenly - literally, - and not many people really do understand this properly. I mean Deaf people wont suddenly come and say ' welcome, and we'd show you around', it doesnt work like this, (ideally would be nice but people are selfish, as Id say humans are selfish/social creatures, just like wolves)...
so your 'craziness' is not crazy at all, its a reaction to something that you ARE going to have to face, and the hieghening of fear isnt going to make it better. Just start to make a start, i mean, you know what you like and enjoy rie ght? keep that, you know your views on things like voting, colour, films, but when it comes to music- its not about 'what id sounds like' its more about what image it advertises, thats bit you can keep and you'd start seeing the whole world thru deaf's eye, if not Deaf yet....you can make is easier for yourself, make one freind at time, like you would (and did) in the hearing world...you still have all the time to get used to it...
lastly, its normal to panic, and panic is not nice, scary even, its like fear of the unknown, and the reason i said all above, about taking things what you know with you, its a strategy to comfort yourself into a new journey in life...
just take it easy (easy said than done at times i know)...but do remind yourself, its NOT the end of the world, each day as it comes is a new day, some days is gonna be shit, others great that makes you feel was all worth it, then other days makes you feel what's the point. feelings are just reminders that's we're real and alive, that's all. You are not a robot, or an accident in life.
You'd be fine.