I think the fact that we can't prove god exists is a given at this point.
But, "Ya gotta have faith", you say.
saying it much better than I could ever!
I suppose if you have faith, it's OK for YOU. But, please understand that your faith does not, in any way, make the object of your faith any more real.
Understand that having faith and, indeed, even prayer may get resutls for you. But, just as likely, so will meditation to yourself.
It is the human mind, in my opinion, that causes the faith and prayer to work, not some distant cosmic power.
Let's give ourselves credit. We are the gods!