Welcome to NT
Glad you told us all that info. That's a lot and a longstanding injury. After six months a condition is termed "chronic." So your headaches would be chronic.
Head injuries are special. They need special attention and special doctors.
Just to let you know what I would say to my loved one with a head injury: "Since you've injured your head, I can't let you make those important health decisions because head injuries would render you unable to determine what would be best for yourself. Leave it to the professionals, please. It's the only head you've got."
I admire your spirit but live to play another day. Health is No. 1 right now. Let your parents in on it. They'll do the right thing. You'll be okay. If you'll let it heal, you may be able to play. Brain injuries are slow healers, though.
Nutrition and rest are very important things that will help with your recovery from this injury. Be willing to compromise to get better. Since you have this problem, you have to deal with it. It's not going to just go away. You need attention, okay?