How much formula??

Hey there. My second baby, a boy, was born one month ago weighing 8 pounds. I’m writing this to see if anyone can tell me if i should up his formula intake to 3.5-4 ounces since the 3 ounces I’ve been giving him doesn’t seem to be enough. He’s just never happy or satisfied but I’m afraid of over feeding him & making him sick. Everything I read online says he should take 3- ounces every 4 hours but he’s eating 3 ounces every 2 hours or less. Please help me I’m exhausted with the constant feedings & I just want him to be happy & satisfied for a longer period of time 😭

**I gave my first child my breast milk exclusively a few years back so this formula deal is all new to me....He’s just not happy hardly ever all he wants to do is eat but it seems it’s never enough...