set your bullet seater deeper.
Seriously, this is where you want to start reloading? You bought a kit and your first question is this? This is not a newbie question. You need to learn about this craft. Order some books, or if you are unable to take what is in a book and do it with your hands, then I guess you should watch some videos.
I, myself, have never done that, but I am sure that you can. There wasn't actually an internet when I started this and not many videos either.
I would tell you to seek out a mentor.