The only *advice* I got is that "I'm too young to think like this" can you do better?

So basically, I'm 19. I'm smart enough to go to uni but I don't think I'd make it through the mental pressure school puts on you, I'd rather work full time. But the jobs you get without uni aren't really paid well here and I'd just have to listen what a waste of potential I am. Don't have a girlfriend because it's too volatile for me, I'd rather have stability which can't be achieved as long as you involve another person this much in your life. The only thing I want is go breathe out for some time, I just want peace and calmness. I don't want a hugh paying stressful job, I just want to have enough. Enough to feed myself, live in a small flat and be able to spend a little on hobbies or set something aside so that I don't have to be afraid. What I see in the future is failure or more pain in every path I take and I'm really afraid that this mindset won't even alow my life to really begin. Yet all I want is something calm, peaceful, stable, reliable, no climbing ladders, no competing, I'm not really competitive, ambitious, envious, don't want to build something just for the reason of people envying/adoring me. And I'm not really gluttonous in any way. It's like I wanna retire at the age of 19