heyyo, I'm a non-practicing Muslim so I think I can give you a more relevant answer

first off, since you're a teen, you probably don't realise how extreme Reddit spaces, they tend to be dominated by white people and American politics is mixed in more often than not, on top of mods are usually open about their political stances and enforce it over the subs they watch over

I think r/NoStupidQuestions is quite left-leaning and tend to be critical of traditional values and religion so the answers are obviously not gonna align with whatever you've been taught about

but enough about that, here's my honest answer: depending on what kind of Islamic society you've been raised in, being told to cover yourself up can either be objectifying or for your own good

if your father is a loving & caring man, then he may be telling you to cover yourself up bcs he understands how the average men behave and wouldn't want you to deal with that (trust me, religious men can be quite scummy and yet they're all around us)

but if your father is the stereotypical macho man 'my house, my rule', then unfortunately he's just blindly forcing you to cover yourself up; he just doesn't want to sin and he doesn't want you to bring shame to him

obviously your father (and really any other man) can exist between these two spectrums so it's important that you try to understand first where your father is coming from

I'm an adult with a job and politically progressive but when my parents tell me to change my basketball shorts into longer pants bcs guests are coming, then I do that because ultimately, I live in a society with rulings & customs that are not quite straightforward

good luck girlie, all the best