In my 50+ years on this planet, I have never had an experience that I could characterize as “supernatural” in even the slightest way.
I know many true believers, sadly many more unbelievers, but I do not know any believers who have had a supernatural experience. This would include myself and yet I have absolutely no doubt in the existence of a Triune God.
Believing is a gift from God, given freely without any assistance or feeling from myself. This gift can only come from hearing the Word, the bible. I cannot even believe by my own, the Holy Spirit brings this faith to me.
Read the bible, start with the Gospels, give God a chance to surprise you. But I do not think you will find a supernatural experience.
God Bless