Hahahaha thanks!
I have the same feeling. There are so many places and things to experience which I want to do. I am not sure what I am doing with my life either.
In a way I have to grow up and become "successful", but at the same time I would rather just sit in a train somewhere in the alps with the craziest view, have a small wine bottle at train table and trying the best ice cream ever in a random North Italian town.
I really admire the train vloggers on Youtube because that seems so cool to do.
I do not know where to even start, there are so many routes that I want to do right now.
Start with some train travel books. I enjoyed reading Paul Theroux Riding the Iron Rooster before and during travel around China.