IMO, There IS a greater Power. He gave us free will. Absolutely, your...
choice as whether to believe. Some do. Many don't. I weep and pray for those who don't, because I believe in eternal consequences.
BTW, it's not my job to convince you, only to proclaim Him and the Good News.
If and when a change occurs is strictly up to you.
MANY Christians do not get this simple fact. Browbeating IS NOT evangelism.