Cooper is a talented young horse which he has proven on his own but when I ride him and ask him to do anything he won't or is very pokey. I lunge him and then he follows any advice

Tilly used to be the same way she actually used to throw fits. But I found just being consistent and pushing her she came through and now is doing incredible!
Sounds like you really need to get after this horse. Make a firm or scary sound with your voice. My favorite is "hey!" Or "get up there!" I've also had to take the reins with one hand and reach back and give a good smack. It usually only takes one or two times of that to get the message across if he's bright. Best of luck!
Join the fun and sign up to connect with our 200,000 members!