Unable to upload pictures and video.

I will admit, I am not a computer wiz, but on my old laptop I could upload
pictures to be printed and vidoes to e-mail. Now I go through all the same
steps and select pictures and try to upload, but at that point, my computer
won't do anything. Can anyone expain to me what is going on and if this is a
setting problem, explain what to do in leymans terms. I'm completely
frustrated, I waste to much time on what is probably a simple thing to
fix...I hope!!!