Getting back confidence on my horse?

My advice - skip the jumps for now. Get in to a small area (round pen or enclosed arena) and move from a trot to a canter to a trot to a canter. Each time you canter, you'll gain a little more confidence. If you get uncomfortable, move back to a trot (or even a walk). Your canter times can get longer and longer (over days and weeks) until you start to gain confidence with one another. It takes a little time. Don't rush things. Just ride, enjoy and relax! Closed areas are key, especially when you are gaining confidence.