you can't learn from what other people tell you with this kind of thing. Just go out and skate, try them over and over, don't be a pussy. Just make yourself progress. skate fast, it'd be best to learn them on ledges first to make it harder, which makes it easier on rails later on. sometimes people just can't find the right foot they topside with. I did topsouls on handicaps with my right foot when i was learning and realized 3 years later that doing them with my left was sooooooo much easier after i got used to it.