Peer reviews

How do you feel about peer reviews? What have your experiences with them been like?
There are times when I have someone else look over my work and I get embarrassed. I have a very low level of self esteem at times, when it comes to me having someone read my papers. I am not a very good speller nor am I good at punctuation and grammar and I think at time I make no sense when I write. I do take advice well at times, and sometimes I do not. When given advice that I do not like, I end up thinking that the person dose not get my point of view. When given good advice or complements I sometime think people are doing that to make me feel good, because they do not want to hurt my feelings. I have never had any bad experiences with advice so far.
Now when it comes to giving advice, I have a hard time with that. Like I said before, I am not very good at spelling and all that stuff. So I am afraid that I will make thing worse. I am better at telling people how Ifell then to type it out.