Unwanted parenting advice/criticism

My SIL just had baby #3. Ever since then it's like this rude hateful person came out. My baby is now almost 18 months and everything I do is wrong. I can't believe the comments that she has made to me lately. She called me and told me that she felt bad for me because of the schedule my son is on and how it isn't good for him and I need to do this and that. Really?! Please tell me that I'm not the only one dealing with someone so irritating. Just because I'm not the doing the exact same thin she is does not mean I'm wrong. I'm not her. I'm my own person, my son is happy and healthy.