Please help me :'(

Aw hun thats happened to me too with my dad cos my dad's so clumsy lol. But yeah I don't think your cat thought you did it, he was just scared and probably in a lot of pain since cats are so much smaller and weaker than us. So it didnt matter who was helping him, he still would have been worried which is understandable. Your cats is probably happy you tried to help him.
But You really need to take him to the vet, because (I'm not trying to scare you) but the same thing happened to my friend's cat and it seemed fine, but then two days later he died of a brain hemhorrage (like bleeding in the brain). You should take him to the vet because cats have such fragile heads and otherwise he could be brain-damamged.
Hope he's ok bbes x

don't worry.your cat will be alright.and i highly doubt he will think it was you and never come back

cats dont have that great of a memory,your cat was probably just scared.

Man, I'm not reading all that, but I'm sure you'll get over it.

I'm sure he'll be fine :)

Cats really do not remember that sort of stuff, it probably didn't even know it was your dad that hurt it.
This one time my cat was playing with a camera from underneath a table until it fell and hit him on the head. That scared him allot, and since my mom was by the table, he assumed she did that to him. He avoided her for the rest of the day, but he seemed completely forget about it later.

He'll still see you and enter your home.

He'll be fine, I've accidentally stepped on my cats tail and she ran away from me for a bit, then I gave her a hug and played with her and stuff and she "forgave" me and was back to normal, but I'd get your did to give him a hug, just in case he knows it was your dad :)

Animals know when we harm them accidentally and when they are hurt on purpose. There is not a single week when I do not step on my cat's tail or one of his paws. There is not a single day when he doesn't try to run into my legs or my husband's legs just to catch our attention.

Therefore, stuff happens sometimes. He's stepped on or, like your dad did, kicked accidentally. There are hissings (from the cat) and screams (from us) because of that. But as there is no harmful, evil intention, there's no grudge between us. The cat is still very affectionate with us and we do love him dearly.

So, don't worry. You made up right after and your pet knows that this is all an accident that it can happen.

Animals feel the real intentions. Even someone that is all honey but really evil shall be detected immediately by cats or dogs. A bit the same thing with very young children. They are really sensitive to that and are a good indicator of the sincerity of a person.