Chatterbox, I’ll try to give some explanation, but first, yes, focus on yourself and your life. I don’t mean you should become an egoist for a while, none of that. Just do what you will with your life for God and yourself, not for a man or another. If you feel good about your appearance, great, if not, well, do what you want to change it a bit if that will make you feel better. But do it for yourself and not for a guy. Some guys like glasses, some others hate it. There are actually women who buy zero-power glasses to look more professional in their work. I know one who isn’t even 20. Personally I refuse to let go of my glasses. If someone wants a picture of me without my glasses, fine, but that’s it.
Now, as for poor manners in well… your generation? Mine? I guess it’s nearly the same unless mine is worse.

The standards decline. There’s been a whole lot of, “be yourself, express yourself, do what you want,” kind of attitude and that has done some brainwashing all over the globe - except the conservative environments where it didn’t reach. I try to see good in people, but honestly, I can’t rate their overall manners too highly.
Now, as for conservative Catholic men wanting a professional girl. What kind of conservative Catholic men are you looking at? I would imagine they come from a variety of environments and they don’t necessarily share this expectation. Don’t many of them want a stay at home wife and mother, first of all? Your work is somewhere close to that, isn’t it. Perhaps you’re looking at professional guys? Those may be looking for similarities. If you specifically want a professional guy, well, since you’re single you probably have some free time to take a course or two, make a certificate or a diploma or learn a new skill, no?

Taking things in your own hands will bring you a lot of satisfaction too.
And don’t worry about people looking down on your for some self-perceived moral reasons. There’s no moral obligation to earn six digits.

If someone looks down on you for moral reasons, he needs to get a better understanding of morality, for I fear he doesn’t get much of it.