To the OP, welcome!
But in answer to your question, no, I have never had a moments concern that JW's are actually correct. I let go of more beliefs than you did. I can't help you too much. I feel like if one believes the bible is true then one can make a case for almost anything. Some of the JW interpretations are marginally better than others - but many of them are much worse than others.
In my strong opinion, no real consensus exsits among the authors of the bible. Focus on this:
1. There is no good reason to believe Jehovah's Witnesses have special access to truth.
2. There are good reasons to not be a Jehovah's Witnesses.
3. At least some things they teach are patently false.
4. At least some things they teach are bad.
5. No good thing they teach is unique to them - all good things about Jehovah's Witnesses can be found in other religions if you choose to.
Go see a talk therapist or counselor. You are probably dealing with anxiety or depression which is underlying this change. It could be a ratoinal choice for you to be a JW if you want to do so for friends / family. This does not sound like what you are dealing with.