You probably don’t want to hear this, but 4 months isn’t that long. I know of many girls, ages 21-22, who hadn’t gone out EVER and then married their first or second guy. Wouldn’t you rather be that girl?
I was in shidduchim for a long time, and now that I’m married, I can tell you that all that worrying and tears were huge wastes of time that I can never get back. I agree with the other posters who tell you to ENJOY this time.
The more you can develop YOURSELF and become happy within, the better wife and mother you will BE”H be.