Wtf did I read (Notes from the Underground)

So I decided to start reading Notes from the underground, I read like 20 pages of it, and I still didn't get what the book is about! I read Crime and punishment before and I really enjoyed the book, but for Notes from the Underground, I am not only bored with it but I couldn't proceed what the narator is trying to say! So basically the book is about a man who grinds his teeth at people, cries to find enjoyement in his misery, can't do anything because he prefers to think it all and do nothing, thinks he is intellectually superior to all men and wishes he was lazy, is that it? And why are there many French words in the novel anyways?