It's scary that's for sure. Nobody can tell you what to do and it looks like you've already fallen down the rabbit hole in terms of discovering that the foundations for your faith are worthless, just be prepared for heartache either way. If you stay you'll be eaten away on the inside and if you leave you'll lose all your friends and maybe family.
Do what you feel you need to, I was in your shoes once and I just quit everything at once. The elders turned up once or twice but couldn't be bothered to even disfellowship me. I put everything behind me and moved on with my life, your results may vary.