Want to a gig in Glasgow (Live in Dundee) Need help, don't know how to go about getting there.?

Hi, I am 18, live in Dundee and I want to go to a devin townsend gig on the 7th of March. I've never been to a gig before and have also never really travelled on my own before. I have no idea how to get there, whether I should stay at a hotel after the gig, don't know which buses to get,etc. If anyone can help me I'd be grateful.