My 20s were in the late 80s into the 90s, but even then yes it was indeed a struggle and things were hard. First of all you feel EVERYTHING so much more intensely and deeply, everything MATTERS so much more - and so that makes life more painful in general. I struggled with school, discovering who I was (never did figure that out. lol), the relationships with my parents, romantic relationships, looking for work, money. Some people have a really fun time in their 20s too though and say it was the best and most exciting time in their lives (it WAS more exciting at that age, I'll give them that...) but yeah, a person's 20s are tough. So much to figure out, and everything is heightened and you just feel things more, good and bad.