Dear @Rit,
Welcome to the Wefugees Community and thank you for reaching out to us.
I understand very well that the questions in your mind can be puzzling and overwhelming for the time being. However, there are counselling offices which are specialised in supporting young people on exactly these kind of issues (free of charge and confidential). They are called "Youth Migration Services (JMD)" and I highly recommend you to get in touch with them. Here you can find out about such a service near you.
It is a bit difficult to give tailored advice without knowing your individual situation well. I just wanted to comment that you are still very young and in a normal age for making the "Abitur". There are also options to get financial support if you want to study. Handbook Germany explain about the "Bafög" well.
I hope this helps and don't hesitate to get back to us with further questions.
All the best,
Meike