I'm not saying that your horse is not perfect in every way, only that he will not stay that way if all your knowledge is coming from strangers on the internet or people you talk to. Loving and caring for horses is a life long passion but they are not like big puppies that can learn while you learn. One of you has to know something to start with.
I am not saying that you need to give up a dream - only that you do not sound like you are any where near ready for the undertaking you have started. It is the horse that will end up suffering for it.
BTW, you said "he". Is he a gelding?