How do you write a goal plan if you have no idea of what you want to do?

No-one can answer questions concerning your own goals. You can ask close friends or family to get to know how they see you and with their answers you can have some idea how you are towards the rest of the world. But knowing what you want to do has to be answered by yourself alone.

There are on-line tests that give clues to your personality and interests that could be of help.

I wish you lots of success in your quest.