You should give thanks every day for the fact that there are millions of lovely women on earth that you have still not had the happiness to know and gaze on; that there are millions of strong, intelligent men that you have not yet met. You should think of all these beings and be happy.
Be happy that they exist and that one day you will have a chance to see them, talk to them, and admire them. Yes, learn to rejoice simply because such men and women exist, not because you can possess them.
Most of you will say that you would rather have just one man or woman of your own. Indeed, but no one woman can possess all the qualities of all women; no one man can have all the qualities of all men.
You will only find the fulfilment you are seeking if you think of all the men and all the women on the earth.