If that's something you enjoy, good for you. If it motivates you to go on and comforts you, even better. Just be sure to not let it take over everything so that you can have one foot planted on the ground. Otherwise, I hope you continue enjoying Hamilton.
My current obsessions are some fictional characters, but being that my favourites are pretty niche, I don't know if I feel comfortable sharing them just yet. They help comfort me and help me get through things like work, though, so I can definitely see how these interests could be beneficial. Sometimes though, I fall into the trap of "I'd rather just live in their world" or "I wish I didn't need to do anything so that I could focus on just thinking about my interests" which isn't productive. Not to life or to death.