As a 17 year old lad, in an office full of women, average age ~30?

That's a very difficult sort of scenario to cope with. You're fresh from school where you adapt, rather than complain, to the environment. You have no experience of work, office politics or whether this is actually how it happens in the real world! You have no peers who understand your perspective.

And if you make a major scene? Everyone starts tiptoeing round you for fear of causing offence.

That, more than the comments themselves, is what is upsetting. The knowledge you can't actually get them to treat you as they treat each other.