First time moms, how to survive with a newborn by yourself? Hobby Working more 40h and plus he is in medical school. Any tips??? 35 w pregnant.

So our baby was a surprise. I don't have family close. And the only one that lives close is my mother in law ...she is unbearable we don't have a really good relationship... And now with the baby coming she is all the time telling me how many times do I have to hold my baby and for how long, that I have to get that stuff... Bla bla bla bla. So I appreciate advices but not someone that give me orders!! So MAYBE I will have some friends that stop by but most of the time I will be alone. Any tips to go through this? I know that will be hard but I need moms that cheer me up please!!!