I was wondering what career path I should take?

Hi everyone, new here on this subreddit but, I was wondering what career path or jobs i should pursue in terms of saving lives. I used to work as a lifeguard and I realized that saving lives might potentially be a passion I may have. I’ve considered working as an EMT but wanted to see more options to consider! Any recommendations or advice is much appreciated and just realized it might be something I may wanna do in the future. Also, im not sure if age matters but im 22.