Talk to your trainer and maybe try to find an outside trainer that can help you. I started riding with dressage but then I did jumping. Both are super fun. Also, find a horse that can do both.
Talk to your trainer and start a plan on how you will get there and what horse is best to get you there!! Good luck - Dressage and Jumping are really fun!!!
And also the horse should be really calm and tolerant if you're just starting :)
Find a trainer that specializes in it