They say that soon all of the good men will be snapped up and I will be left with no one
Who are “they”? The good ones won’t all be snapped up by their mid/late 20s I can assure you.
At your age you should be concentrating on building a life and career for yourself, getting into a financially stable position to take you through the choppy waters of child-bearing (if you want children) and enjoying your freedom by travelling and experiencing all that this world has to offer.
You may meet someone along the way or maybe in 5-10 years you can put some concerted effort into finding the right one to have a family with if that floats your boat.
Men are mainly a bit shit, don’t put all your hopes for a happy life onto finding one. There will be a whole heap of awful ones out there single (or willing to be tempted away frok their current relationship more likely) throughout your whole life. There will also be a few decent ones and if one of them crosses your path then you’ll make room for them in your fabulous life.
Marriage isn’t all it’s cracked up to be - there’s a reason half of them end in divorce and many more are pretty miserable.
Im late 40s, have had 2 significant relationships over the years, and am now hoping I meet someone nice to spend my later years with, but I’ve realised that I can’t force it, don’t want to sift through all the frogs to find the prince, so I’m focussing on what I want to do, and if someone happens to come along, then great. I won’t settle for the mediocre tantrumming manchild that I was with for 9 years or the emotionally stunted robot before that!
And as for you losing your youthful good looks, don’t be daft. Women aren’t like bread that goes stale after a short while. We’re fucking fabulous at any age, and any man that only wants you wrinkle free and perky is a shallow twat and best avoided.