Breastfeeding

Any tips? On latching better... How long they stay latched and eat for etc. my baby will vary all the time. And either eat for 15 to 25 mins and be fine for like 4 to 5 hours but then like today he has only been eating 5 to 10 mins and needs to be fed again in an hour... How can I try and get an any kind of schedule? I know it's not good to try and get on a schedule but it's driving me crazy.