Horse is hard to slow down
My paint figured out finally how to canter with me in saddle, so any time I trot her in the beginning of my riding (well, almost any time) she tries to speed up and go to canter instead of trot (in ring and on trail too). Looks like she's just overexcited (she just turned 4 last month). I tried half-halts, but they don't seem to help much. I also do the circles, but she's actually speeding up on circle even more. Is there any other ways to work with her on that? She mostly does it while she's fresh, after 5-10 mins of good trot she slows down.