Posterior Scaling

For me I think that posterior scaling is alittle bit easier for me to grasp, but someone explained it to me better. I think that it's way to different to work on a real person than to work on a typodont. Scaling is really fun but I'm constantly worried that I'm going to hurt that person. I think I;ll get better once my fingers get stronger and I've practice more but it's still stressful to learn especially when I'm not getting the concept as well.