I completely agree with taking a break. Sometimes a break is just enough to let you refresh your mind, get away from something a bit... and then sort of fall in love with it again.

If you want to keep at it, you might think about whether you'd benefit from a new teacher (different perspective), or if you can change up your music. I'm studying piano, and sometimes when I'm depressed or bored, finding music that I really love (even if it's something silly or pop music) can make a huge difference. (I'm currently working on the "Everybody Loves Raymond" theme music!)

And... I have to say... the fact that you've stuck with it for 8 years really DOES show that you ARE able to commit and stick with something. It's much different than quitting after 2 months! After 8 years, I assume that alot of what you learned will be easily regained, even if you take a break for a couple *years*.

Good luck, and I hope you can find something you love, that brings you joy and happiness, whether it's music... or something else!