Are you eating it cause you are hungry or because you feel like eating something? (KWIM?)
Jelly doesn't strike me as being at all filling. If it's only for a sugar kick why don't you separate it into portions before you set it (like 3-4 separate containers)? And just have one.
If you are actually hungry, I'd stay away from sweet stuff TBH. I'd go for sticks of celery and broccoli florets with hommus or something like that.