Help me decide on a career path.

So right now im having a hard time choosing a career.

There are three things that have really peeked my interest and I want to align everything toward which ever I choose but I bounce between all of them.

1. Special Agent (im not going to disclose which agency simply one of the many 3 letters)

2. Historian

3. Doctor (either radiology or general medicine)

So I love helping people and originally went to join a force who takes on danger to rescue people but ultimately could not do it due to a medical issue. It has always been my goal to help people through healing or other means (I.e. rescue, enforcing laws or investigating) and try and make the world a better place through my actions either recognized or not.

I also love history currently I manage records for a agency and I do like my job I just wish I got to work with the records more often. I love learning about the past and documenting what has happened so we can progress from it. I also enjoy reading and preserving that data.

I also do love to gather information and poke until I know a topic like no one else.

I'm just looking for some advice because I have 3 path id like to walk but I know I need to choose one so i can be the best i possibly can be at it and give what ever im doing my all.