The 'year out' idea is a really good one, it could be a great way to see the world and find out more about life in general, and something you could combine with your passion for cycling. Why not finish your course so you have the qualification under your belt if you need it later (you never know) and once done go travel for a year, maybe a huge cycling tour of Europe? It's also something you could plan while being annoyed at being stuck in college and use to reward yourself for sticking at the course and completing it.
Also +several. From my experience/people I have known etc., year out = no negative effects & great potential positive contribution to `staying sane' or whatever; dropping out = wasting your time with nothing to show for it & gradually leaving you with fewer and fewer options as time goes on
Also +several. From my experience/people I have known etc., year out = no negative effects & great potential positive contribution to `staying sane' or whatever; dropping out = wasting your time with nothing to show for it & gradually leaving you with fewer and fewer options as time goes on