Not what you want to hear, BUT he needs a professional and more than just weekends.
WHY ??? Is he a stallion-superior bloodlines, relatives are great performance horses, the last living being in his bloodline.
Stallions should NEVER be taken for granted and never dealt with other than professionals. And if not all of the above are not needed as a breeding animal and it is in everyones best interest horse/humans to make him a gelding.
He is quite now, he is just coming into sexual maturity, in about a month or two he will become what is considered unpredicatable. When he smells ovulation and he will, in people or horses smells the same to him. He will not be the la-la-la I'm so nice, just be my friend.
This is the voice of reason. If you are here asking for help, you are already in over your head. For everyones safety it would be best to politely back out or once he's gelded you can try, then you will have much more room for trial/error without getting yourself the horse or someone else hurt.