Welcome James Jack! There are a lot of comments on this thread full of wisdom.
Give yourself some time and space (without anything religious) and just be for a while. I know it sounds kind of hokey but honestly, after making every decision in my life based on what God wanted, it was necessary for me to just kind of sit with myself for a while without thinking about what the bible said, what jws said, what the secular world said. It was too overwhelming. I just couldn't figure it all out at once and I think it's tempting to to replace all those rules/bible knowledge/jw knowledge with something. You can little by little create a new belief system that reflects the unique individual that you are whatever that may be. Some on this forum are atheists/some are religious/some are spiritual. Get comfortable with not having all the answers. None of us have "all" the answers. I think that's the biggest psychological hurdle when leaving- there is this void that you feel you have to fill where there were all the answers and that is just not reality- the truth is their is no truth, at least in imo.
I guess what I'm saying is get comfortable with a certain level of uncertainty. That's really helped me.