Welcome to this forum Meth.
It seems that almost everyone at some time in their lives, reaches a point where they need to focus on, their own well being and on what is best for them.
At 17 yrs of age this is a good time to think of and plan for, your future. As others here have stated, and education or training in some specific field is needed to make ends meet in todays society. You didn't make mention of it, but I assume that your dad is there for you, in this situation. If so, you two can work together in your's and his best interests.
As for the healing of a disrupted family, only time and your demonstrating a happy and sucessful life will work in this direction. Also if they see in you an accepting and loving attitude towards them as persons, This leaves the door open for healing.
In my case it was the passing of time that in many ways brought most of us back together.
At your age this is a sad situation. But at your age you can do the necessary planing and work to achieve what you need. When you feel down or about to give up, turn to those adults that you can trust, have your best interest on all things.
Posting your feelings and fears here on this forum will be a good way to get things out and you will receive a lot of suggestions. Most of them will be good. Let us know from time to time how you are doing.
Outoftheorg