Thanks for all your help!!
Yes, I have recently teamed up with a great trainer who is really helping me get my flat work up to scratch.
I am 16yrs old and come early next year when I turn 17 I am no longer allowed to compete my pony so I will be selling him to a good home and buying myself a horse. I do have a 15.2hh horse at home but she has arthritis and is not suitable for jumping higher than 50-60cm so I can't compete her.
When I got Colby, he had only been ridden at a walk and trot as his owner was a beginner rider. I have owned him for a year and in that year he has come a long way, he still has quite a way to go but when I got him he would zig zag infront of the jumps, approach at a mad canter and bolt after the jump etc.
Currently at home we are working on a slow, controlled trot to the jumps when warming up and a balanced, even canter around the whole course (not just after the jumps).
He's doing really well and improves so much each day.
Thanks everyone for your comments and keep them coming!!