Switching instruments

"I've been playing (fill in the blank) for x years.  I don't like it.  Will I like playing (fill in the blank) more?"

My response?  I don't know.  Depends.  Do you not like your current instrument because of the sound?  or because you are having a hard time reading the music? or because you can't get your mouth/fingers/feet to do what you want them to?  or is it because you don't want to be the only one playing said instrument? or is it too big/small for you? or is it the music you are playing?

If you don't like playing lets say the tuba because it is too big and heavy, another instrument (pretty much any) might be more enjoyable because it is more manageable.  If you don't like playing your instrument because you don't like the sound, then another instrument might make a difference.

However if you are having a hard time reading music, or you want to play a more popular instrument because it is "cool", or you can't seem to get your fingers/mouth/feet to do what you want to do, most likely another instrument is not going to change things.

If it is the music, as your teacher to find a different kind of music that you would be more interested in.  Dare I say it, but there is more than Classical music out there!  Try duets-they can be a lot of fun, especially if you have a friend who plays an instrument (doesn't even have to be the same instrument usually).

Think long and hard about why you don't like your instrument and why you want to switch.  Although you could always go back to your original instrument or even better learn a 2nd instrument for fun!  Good Luck.