He sure is handsom! I like that you have keepers on your bridle while using the full cheek.
What I suggest is looking for a Dressage Instructor to ride with once a week, and a Jumping coach to work with another day of the week *if you have the money that is, I know it is tight*
If you can't do both, I would look to a Dressage Coach first - not because you're going to do dressage, but because dressage is the fundamentals and the building blocks to all riding, and by working on dressage you improve both you and your horses foundation, to be that much better when you venture to jumping.
Your position needs improving, and you cannot improve your horse, if you are out. When you are out, your horse is as well - remember, they are carrying us and rely on our balance to be balanced.
Remember, jumping is dressage with speed bumps.
The Training Scale should be your first priority right now for both you and your horse. Firstly working on relaxation. The Art of Classical Riding--The Training Scale
Question, is there a reason why you are using the flash on your boy?
Dressage is going to help you both build a strong foundation first, then when you get that, you can move forward and onward to hunters, jumpers, etc, etc, etc.