I just wish my friends would do a better job, haha kidding. But not kidding.
Helpful: Learning about feminine and masculine energies
Everyone, single or not, should read David Deida's book Intimate Communion. It very clearly lays out what feminine and masculine energies are and how they work in our day-to-day lives. It will open your mind to understanding your partner or others in your life/work/dating. Questions like, why don't men want to commit? Why do working, professional women exude masculine energies and therefore also lose their femininity outside of work? Why do we date wimpy men? What are the differences between love, romance, and sexual polarity? How come we're attracted to the same kinds of guys all the time? Why do we have these patterns?
Helpful: Being open and not taking any of this so seriously
In the end, wherever you are at this moment, you are completely, perfectly fine. If we can just remain open to life, enjoy it as much as we can, regardless of our relationship status, life is good.
Stop taking any of this too seriously! Our time is so finite and limited, if we waste it too much on worrying, then blip! You're gone. My 30s have been the best times in my life so far. I may still not know that much, but at least I know that I do'’t know that much anyway about this whole existence or the meaning of it all.