if you dont have access to a tightrope of lions... get a slackline, and be ready to do work, patience.
when all else fails, get a single 2x4 about four feet long, place it flat on the ground, and jump on it. you will gain muscle memory by learning the various switchups and spins on. when you are ready, turn the 2x4 so it is balancing on the 1.5 inch width... you will barely be able to jump on it and balance it, but when you can 270 on 360 switch up on it, you know the force is with you. if you get that down... take it to a skateboard...