Considering you've already paid your tuition and accomodation fees, I would suggest focusing on your course until the summer holidays.Then you could work abroad for 3 months or so over the summer.
Boring as it may sound, I think you need to think long-term. Obviously travelling is fun, but workaway placements are usually unpaid and although some offer a small stipend, dropping out to work on a farm for free is not really a career plan. Think about where you want to be 5 or 10 years from now, and how you can make that happen. In the meantime, there's nothing to stop you taking advantage of the super-long university holidays while getting a decent education that will open more doors in the long run.