I will also pray for you!
Just to reassure you, I left home at 17, managed to graduate, while living on my own. It was not easy. But I stayed on my feet, somehow. I went to university one year, then decided on an alternative lifestyle, which was really not a good option! I was making silver jewelry and playing music in bars. I finally went back to a community college, cost was $50 a semester. I got straight As and an entrance scholarship to a major Canadian university, I was 26.
But the big change was God saved me, and that really turned my life around. I got my teaching certificate, finished my degree, got married and had children
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You already know God, nothing is more important than that! Hang onto to him, and don't be afraid to get help from your church or other charities. You can do this!