I don't know, it's all a little too artistic for me to understand. There seems to be at least 2 concepts in the original post - gender and "maturity," whatever that is. I'm very simplistic about gender - there are males and females mostly, plus a few who don't quite fit so neatly into the binary thing - and I sense it's got little to do with what the OP was trying to say.
As for maturity, it's so loaded with value judgements that I tend to avoid using the word. People act in various ways, I like some of those actions, I dislike others. Some of those actions are associated with age to some extent. If somebody starts doing something I approve of and it's associated with them getting older, I might fall into the trap of calling them mature, a real man or a real woman, but I prefer to be more objective, to own my part in the equation and just say I like what they did.
I suppose I like to see myself as progressing somewhere, gradually learning more, acquiring more skills that help me to get more of the stuff I think I want. And I hate it when it seems to be going backwards. And it annoys me to think that old age might bring feeblemindedness with it, and certainly the body will get more feeble. All that improvement in strength and ability, then one day you've peaked and you're on the way back down to annihilation.
I don't put my needs aside very often, at least not consciously. I just enjoy being helpful for its own sake, I suppose it gives me a good feeling about myself. But I don't think I'd willingly make many sacrifices or ignore my own needs much just for the sake of others. When it has turned out that way it's usually been a case of circumstances having trapped me into the situation, and I tend to wish it hadn't gone like that.