I studied maths and physics for two years after highschool.
I have since then tried to forget those two years
The profs were all crazy and the students werent any better.
I remember one lecture with a prof with long beard, thick glasses and sandals with wool socks doing some calculations for 1 1/2 hours, writing on several boards. After he was done he stepped back, rubbed his long grey beard and talked to himself about some mistake he made. Then he spent 15minutes mumbling and looking for the mistake. He couldnt find it and turned to the audience: "I made a mistake but I cant find it. It doesnt matter because I am sure you all know where I was getting at." And he left.
I had no idea what was going on.
There were lots of these incidents and I actually passed all the courses but eventually I couldnt take it any more.
Higher maths is a really mental thing and its not healthy for everyone.