When I started university I needed to move to another city, much bigger than mine. When I moved in I lived alone in small apartment. That time living alone was hard form me ( since I come from family of 6 and when home I was never alone), being alone in evening and mornings was really depressing for me, I thought that life is so hard when you live alone. And how time passed living there I realized that it actually wasn't so bad because I became more independent, mentally too, realizing that I need to value time that I spend alone ( and not to be a crybaby when moving in 😅). Now the few years past since I lived there alone and I am really greatfull for that time that then was hard for me, but today I know that it was a life lesson for me, and a really good one.
I found life hard only on occasions, but as you say no one ever guaranteed us that life would be easy. We need to learn how to cope with hard times in life and know that there are always good and magnificent times in our lives.
Have a nice day. :)