Cutting my hair...

Current hair

What I think I want

I donated my hair in 2016 and it has grown back so I guess it’s time to do it again...

But my dad doesn’t want me to cut it, even went as far as saying “you wouldn’t want ugly short hair for our trip”... I don’t cut my hair cause I want to I know someone needs it more than I do. But my dads always had the mind set I never had a real haircut before the age of 18 when I made the first donation only trims. I just don’t know what I should do or say because what he thinks matters to me 😒😶😕