1. I have only ridden one other horse this lazy. And I rode that horse only once for like, ten to twenty minutes. This horse I'm going to be riding every day for like, an hour. He doesn't want to trot, canter, or move much at all.
It's hard to give you something that would work since each horse can and will sometimes respond to different things. Try using leg pressure, increase your energy, move your body a little quicker (pretend you are the horse and your "trotting" it will make it uncomfortable for the horse to do anything but trot), giving a little tap with a crop on either the shoulder (try that one first) or the hindquarters, and my list can go on. For my horse squeezing is enough or going into the pace myself....where as if I even carry a crop he won't stop bolting until I drop it. So agian it depends on each horse
2. The last horse I rode that was this Gate Sour was a pony. A lot easier to control a 12 hand pony than a 15-16 hand horse with a strong neck. Every time I ride towards the gate (it's a roundpen), he slows, and pulls hard towards the gate. And it takes almost all my strength to get him back on course... which leaves me half a circle to continue with. And I don't get how to make him less gate sour... my arms start hurting! (and I've done leg pressure, waving my hand on that side, speeding up heading towards the gate, etc)
My friends horse is very gate sourer and will slow down at that point (even if it means slamming on the breaks) and when we go to leave he'll bolt off (even if we are leading him). What we would do is open the gate and just have him stand there. Each time we moved we'd back him up. When he could stand for 5 seconds, we'd let him WALK through. Then next time we'd ask him to wait 10 seconds, and up and up so he could wait an hour there with no problems.
Other than that, keep his head and attention to the INSIDE of the roundpen so that he can't see if the gate is by him or not. Also keep your energy levels up when passing it. And most of all do NOT look at the gate!!
3. I'd like to do trails, and I have one question: Is it better to post to the trot or sit to it on trails? It seems that I'm doing really well sitting to the trot (for a few minutes), while my posting goes all over the place. I'm just kind of out of shape... but I'm doing Pilates every night to help that
That is all just personal preference....I always sit trot...hardly ever will I post trot on a horse unless their trot is horribly bumpy. If you like posting more, then I say post on the trails....if you like sit trotting, then sit trot. There is no right or wrong way.