basically for the 5, just throw a 3 and for the last 180, just dont move your head and keep your eye on the landing. So do the 3 and spot the last 180.
For the front, "throw the beachball". Stagger your feet, put your hands over your head, jump out and tuck. I also have trouble getting them around, but this stuff helps.
Cant help you with the backies much more then spot your landing and fully commit.
Good luck