I have absolutely no idea what to do with myself after school finishes
Are you wanting to study more at school?
I'm not really willing to go to school and I don't think I'm needed there.
Continuing education to the higher level is not for everybody but you should consider what you want for the future. It is important to consider and come up with a plan for your future so that you can be happy instead of drifting through life.
No, it's not for me. I'm going to travel because I don't want to study.
That is fine if you don't want to go to school, but you should figure out a plan with what to do in life. Maybe you can take a year off and see the world. Then you can come back fresh and open minded about what to do next.