When I've lost my drive to practice, I watch videos of Mischa Maisky playing the repertoire I'm working on. Then I think about how I don't sound nearly as good as him yet! Then I pick up my cello and get back to work! Remember! When you're not practicing, somebody else always is!
all the time I spend on piano is really just for nothing, it brings me no sort of tangible benefit.
I sometimes feel that I have squandered my years of practice for nothing.
Another thing, if you have years invested then maybe switch up the genre of music a bit.
The cello is my heart and soul! The piano is just my day-job.
I really don't feel like practising piano anymore. I'm not a professional pianist, and all the time I spend on piano is really just for nothing, it brings me no sort of tangible benefit. I know what it takes to really polish a piece and it is really hard work indeed. Sometimes for fun I polish a piece up to performance ready level and nobody's there to listen to it. This gives me no pleasure at all. Sometimes I practice a piece until I literally get bored of it and the melodies start to ring in my head like noise. The result is just like drivel where I progressively play worse the more I practice. I work on technical issues, but it seems useless since I can already play most of the pieces in the piano repertoire and it's again too much work for nothing in return. I sometimes feel that I have squandered my years of practice for nothing.