Mother in law

Alright. My son is 6 days old and my MIL is driving me nuts. I love her. She’s amazing, but now she expects me to raise my son the way she did.

She keep saying “do this” or “don’t do this.”

My wife and I have been with each other since we were 15 so my MIL thinks I’m still a teenager.

Wife has supported me which has been great. Any ideas? She’s hard to talk to, but I think I need to sit her down.