I hate my father... Is it a sin?

Not according to the Bible. Honour thy father & mother it says, nothing about liking or loving them so long as they are treated with respect/honour.

I would say that it depends on the reason for it...to have hate feelings for no real legitimate reason would be wrong, but if he has done something in general or especially to you that negatively impacted your health (mental, emotional, and physical) and life then it would be highly understandable.

To have hatred towards anyone is sin.

Possibly a sign of immaturity. Did you make this decision based solely on your emotions, or have you really thought about why he is the way he is?

I'd say hate is a sin. What was it? Wrath? Seven deadly sins? Same thing.

I guess that depends on your beliefs.

No . Mine was a total asshat as well

Only if u want it to be

if it is i'm def going to hell 🤔