Hi, James!!! I am so glad you found this forum! You will get all the support you need from all the wonderful people here.
First, let me say how sorry I am that you have to suffer this disorder. Life is hard enough at your age.
Now, I will give you the naked truth. I will not tell you that once you get on a medicine that you will be totally fine. Usually it's a trial and error, because we are all wired differently and what works for one, may not work for another. It can be awhile to find the right "cocktail" of medications and to get stable. You sound like type I to me, with the hallucinations, voices and pscychotic tendancies. I'm type I, too. It's the most severe form and the trickiest to treat. The great news is that in recent years there are many more meds to try with less side effects than lithium and antipsychotics that are safer. (Lithium works very well for many, tho. If your doc prescribes it, try it.)
Here's the trick for staying reasonably stable: talk to your doc as soon as you start having symptoms of mania: lots of energy, racing thoughts, talking too fast for people to understand, anger, irritability, etc. Nip it in the bud. The longer it goes on, the harder it is to get under conrol. And the harder you will crash (depression). If you start feeling depressed (lack of energy, lack of motivation, feeling numb emotionally, tired), call the doc immediately. You don't necessarily have to make an appointment every time, the important thing is to keep in touch every time you feel something is going on - quickly. You may possibly experience a period of depression when you start your meds, that can happen when you get brought down from mania. There is often an adjustment period, where you feel like everything is in slow motion and you feel blah. It will pass.
BP is a lifelong illness and requires a lot of attention and care. It is hereditary, and since your mom has it, it's logical that you do. As far as your father, well, many parents don't want to believe there is anything wrong with their children as far as psych problems. They don't understand and don't believe these disorders exist. It's not your fault! The best scientists can find is that it is a neuron (electrical function of the brain) disorder as well as a chemical imbalance. But no one knows for sure. So it is as physical as diabetes or heart disease. You might want to give one of Kay Jamison's books on BP to your father to read as Dana suggested. Ask him to educate himself on BP and to support you.
I hope this helps you some. There is just so much to know, it can blow the mind (no pun intended LOL)! Anyway, I'm glad you found us!