Ok, so you view marriage as a "goal" and fearful of ending up alone. I don't sympathize with that concept nor do I like it, but I can understand that idea in theory. I hope you realize that there are a lot of men nowadays who really find it unattractive to be with women who give off the vibe that they want commitment and marriage as a goal. Men are now the buyers and women are the sellers. Pre-feminism had it the right way- women were buyers and men were sellers.
Marriage is different for the people involved. People want and get different things from marriage. I never wanted to be married, and I never thought of having kids either. As a matter of fact, I find the notion of kids-having them, raising them, pouring all my money into them- all of it seems to be too revolting. Yet, I was married and my ex wanted to have kids with me. It sorta surprised me that I was married, and so young. But then again, surprising things happen in life all the time.
My point goes back to my original post, it takes trial and error to get what you want. I hope you do find someone who's suitable for you and can give you what you want and that you treat him well. As to when that will happen, that's a bit too specific that even astrology doesn't foretell such fortunes.