I like repeating something someone else created until I master it. Playing just a little bit better after every attempt is motivating, playing well after training is also motivating.

Creating is not motivating because I compare myself to others. You have to feel that you could do something unique enough or good enough to be motivated.

Electric guitar can be really fun but I always end up playing the piano because it's easier. The keys are in order in front of you, not arranged in weird ways on strings.