The best place to start is by connecting with other people who share the same passions as you. I've similarly been fascinated by astronomy since I was a young child. A few years ago I rekindled my interest by buying a telescope and joining a club in Pittsburgh. I learned more from a few casual conversations with members than I had in months and months of reading and practicing on my own. Now I practice astrophotography and engage in lots of educational and community outreach events, and I owe just about everything to the club I joined. Best of luck, and clear skies!