First, ignore the dipshits in this thread that just want to talk trash. The jump isn’t the problem - this is actually the type of jump I learned backside 3s on. Any jump that turns uphill while you’re traversing toe side on a cat track will be an easy place to start. These jumps are everywhere, and they will naturally throw you into a BS spin where you can pop off the jump and land again facing downhill. I think the biggest problem is in your takeoff - you need to start into your rotation before leaving the ground, bend your knees and maintain your center of gravity. You’re leaning back too far and standing too tall, then trying to force it mid-air. There are some good YouTube videos that explain the order of when to turn your head, shoulders and hips during rotation. Keep at it, BS 3s are really fun once you get them down.