Glad to help. It might be useful to retract a little when peeing. This prevents the urine from wetting the foreskin and back under it to the glans. It'll also prevent your dad from commenting on how much foreskin you have
That was an odd comment for him to make but was probably related to the outdated concept I was explaining about above. I'm sure he just has your best interests at heart. Most circumcised guys don't really know much about foreskins and a lot of medical people don't either, especially in the USA. I gather you are in the USA and that he is circumcised or has a short foreskin?
As long as you can retract your foreskin easily when erect or flacid and wash with plain water every day you are totally normal. Any extra foreskin is just more fun to play with