I was able to solve most of excercise questions in textbook when I was in high school, but as I expected, university level mathematics is really difficult. I have been studying baby Rudin but I cannot solve most of excercise questions unless I see the solution first. But I am really worried because I am compelled to think that I should produce all the solutions on my own and looking at the solutions first won't get me far. Then, since trying to solve problems on my own is extremely diffcult, sometimes I just want to quit. So how do you study maths?