Hello together, as described above, I need a few tips from experts. I have a car with hail damage which I can call my own. I ordered everything from Amazon and wanted to get started. Unfortunately I do something wrong. After a few times the upper part of the train adapter breaks again and again. can someone tell me how to pull out the dents properly? how exactly do you have to put the train hammer on? you have to exert STANDIG pressure on the train adapter and then up zi or just stick and pull? How do you do that?