1st solo trip booked! Germany.

I have never solo traveled before and am pretty hyped about it. I just said fuck it and let’s see where this goes. I am flying into Hamburg, then taking the train to Leipzig, then Dresden then spending the majority of the time in Berlin. I will be gone for 13 days. I have a budget of 3k. That does not include lodging or airfare but will include train fare. From what I’ve been researching getting around is fairly easy. I chose Germany because of how vibrant it looks and the architecture looks incredible. Also down to explore the underground music scene in Berlin and other creative / raw / gritty places.