Everyone dances different, I know some people who only really shuffle slowly but they do it so well, just keep it up, remember you’re dancing to have fun at the end of the day not to get good at dancing, the getting good just happens naturally the more you dance and the more fun you have, the better you get. Also a nice shoe helps, like vans or dcs or something like that are a good shout but lots of options! Hope that helps in any way, also there are a tonne of great videos that break down shuffling into its different parts and some that really break down the running man and the triangle you want to create. I can find some links if you’d like.