I’m sorry that happened, now I can’t claim to know your case well enough to describe it, but I can say I had the same wrestling with doubts, and reading apologetics, notable C.S. Lewis’ book Miracles, a Preliminary Study helped me a lot. But even after reading a lot of apologetics (I mean, a lot!), and even after experiencing a number of healings, some of them dramatic, and even after God answering my prayer for him to do X for me, if he cared for me, and X happened, my faith wasn’t growing like I had hoped. Very odd, and unexpected, I know.
But all that changed, when I stopped praying seeking insight and help, and instead started recently to pray “Who are you, Lord?” Kind of along the lines of “If you are real, reveal yourself to me,” I started seeking not to strengthen my faith directly, but indirectly, seeking to know God better.
The more you know someone, the more you will trust them, if they’re trustworthy. That’s what I recommend now, God is a person, not a set of propositions. Evidence for propositions can be helpful, but they’re no substitute for seeking and developing a relationship…