Welcome!
I know just how you feel because I was there myself a while back. It's like you can't believe what you hear is really true and everything that you've been told in the past is thrown into doubt. It really consumes you to think that maybe it isn't the truth after all. It has to be, right?
Well just keep researching. Be true to yourself. Don't be afraid to let yourself ask questions and find out for yourself. Recognise when you have factual information and when you are being fobbed off.
You may know some good things about your religion, but there are good things Catholics point to about theirs too. And every other religion. Do those things make your religion true? What about the false teachings in your religion? What about the mental anxiety your religion causes you, probably without you even recognising it? (e.g. if you don't go out on service, have low hours for the month, miss a meeting, don't pre-study your watchtower, having a talk on the school, an elder asks to give you a shepherding visit...)?
Just do your research and relax. Vent on here, we won't add to your fear or anxiety.