Any art tips?

Guys I wanna start painting using oil paint but I'm not really used to it cause it takes too long to dry, I'm worried I might ruin it before it even dry. I haven't paint since I made something for my project aaand this is the second time I'll be using oil paint, I've been using acrylic paint since I was a kid .. any tips? Like how many amount of paint do I need for it to dry faster, last time I use many paints but some of it didn't get to use it on the canvas and it takes weeks for the painting to dry and I even use hair dryer