I put down music for 20 years and came back into it a couple years ago - I remember feeling so frustrated at first, because I had expectations that I would just fall back into it like riding a bike. I did realize that I retained quite a bit of good stuff but would have to put in the time to get the fingers and sight reading back up to par - I'm feeling much more confident now but it was frustrating for a bit.
See you around on the forum!