@Phuc *******
I know it all seems overwhelming and at times Changwattana can be intimidating (or any immigration office that is). But you can do this. Go in. Take a ticket for N2, normally it isn't that long - better still make an appointment online. Go in with whatever documents you have from your college and speak to the immigration officer. Most of them are friendly. You can do this. Hang in there. You'll probably regret leaving without thinking it through. Lots can happen in 30 days. ⚘