Don't know where I am in life (M 27)? Too many questions (more details below)

Since a few years now, I have been very confused what I want with life. There are multiple things on my mind.

• What is my career going to be like in the future
• Should I change my citizenship or not?
• Should I marry or not?

I find myself feeling like crying when these questions come into mind. I feel really hopeless.

Please help me.