So yeah when i play with my first 3 fingers my pinky curls up and then i have to bring it back straight when i want to use it, so i can't play as fast. is there any way to keep this from happening?
Pics might help. You'll get it over time, Even the best/fastest had to start out slowly, picking out all the sloppiness
Most people's pinkies are initially less dextrous than other fingers. Practicing very slowly and smoothly, and taking a moment to "pose" correctly over chord shapes helps a lot.