Learn to play the piano

I’m now playin solos at church. Not bad but still need to work on my piano skills.

I still have much to learn. I want to play piano as well or even better than guitar. And I’ve only got a 10 year head start on guitar!! I started about six months ago and learned some things but then I kind of stopped practicing. I can still sit down at the piano and play a few good songs but I need to get back into it. Any tips or tricks on learning to play by ear?