If you want to be able to do something you must do it at least ten minutes every day.
If you want to do something professionally, you must do it eight hours a day (like a regular job).
If you want to be the best, you must do it more than that.
If you want to play an instrument, leave it out where you can get at it. When the kids were growing up, there was always a guitar laying around somewhere. We even had one in the bathroom.
Years ago I accepted my limitations and knew that I would never be a great musician. I started too late in life, my sense of rhythm sucks, and I am not willing to practice as long as it is necessary to be good.
I am a singer, and I sing all the time; as a guitarist I have mastered a few chords. Just enough to get me by.
Do what you do best, and practice what you want to do next.
I have found that really good musicians (and people) will always give you encouragement. It is only assholes who will put you down.