Well, I didn't necessarily voluntarily give up on the violin. The high school that I attended was a magnet performing arts school, so after stinking up the joint 1st semester Freshman year, I wasn't allowed to re-enroll in the program afterwards. This was unlike elementary/middle school where you'd spend the entire year in the program and would be automatically enrolled the following year.
Still, it was my fault. I would never truly practice at home. The violin is a wonderful instrument, I'd like to pick in back up now that I'm more disciplined, but I'm kinda fearful that it would be nigh impossible at my age (25).
Now, language.... Started learning French in middle school and continued on to high school. Remember very little of it. I think I could probably learn to read/write it in a snap. The problem I'm facing is whether to even bother re-learning or simply settle on Spanish. Personally, I care nothing at all for Spanish as a language, and I haven't had a Hispanic friend since elementary school, but still, in some workplaces at least, it'd come in handy. If I learn a language, I want to make use of it. I've encountered like 3 Québécois online...really though? Shoot! Why does Japanese have to be from a totally unrelated language family. I don't even want to speak it, just read my manga.