Sorry to hear your having a bad time, but what you're going to start hearing is put the cub up someplace for future use, it's not a trainer. You're also going to hear, "buy a trainer and join a club". I don't know what you mean about ground launching. That's the only way to really do it effectivly. Take off from the ground, into the wind and land on the ground into the wind. It almost like you're not getting enough speed to fly and stalling out plus maybe some setup problems and also maybe some balance problems. If you're determined to go it alone, get someone to at least help you set up the plane or look it over. The path that you're taking is only going to lead to you being discouraged and wasted time and money. It really is a lot of fun to fly, but you're going to beat yourself and your aircraft up so bad that it's going to seem like a full time job that you hate.