why do i have to choose everything now

I just went to college for nursing and i'm currently about to finish my first semester. At the end of the semester, I realized that I cannot do this so I switched to psych. I've always like psych, specifically criminology, sooo ofc i want to lean into that field and see what jobs I can get with a psychology degree and try to do something with law enforcement. But there's also a part of me that wants to open up a cute little practice of my own and really help people in my community (i'm black) to have someone they can talk to that can see their own point of view. I'm only 18 and I a have so much hope for the future but how I can I not worry lwk. Like I'm only 18 and I have to choose what I'm going to study to "hope" I land a job after college. I know with psych you have to go through more schooling to really get money but I'm willing to due that because I love psych (but idk if i'll have the funds lmaoo). With nursing I was guarenteed a job but I knew I would get burnt out and plus I knew I wouldn't be able to properly care for patients. I consider myself a nice person and I would NEVER go out of my way to harm anyone else but I don't think I had the caring qualities a nurse should have and tbh NOT MANY OF MY CLASSMATES DO EITHER. The difference between me and them is that I know I don't have it in me, but those bitches. TUHHHHHH. DO NOT GET SICK IN THE NEXT 5 DAYS IT WILL BE FATAL