Wanna get into nfl.

Hey guys from Ireland. Never really was a huge fan of American football and rarely watched it. But recently seen so many clips on social media and it's something I really wanna get into watching. When I was younger I played a game on my phone I don't remember the name and the team assigned to me was the Miami dolphins so if anyone asked me did I watch the nfl I'd say I was a dolphins fan. Any tips on how to get into the sport and what I should know would be appreciated. Thank you

Edit: I'm a dolphins fan now anyone Tryna convince me otherwise will be unsuccessful