Will I ever get married or have a successful relationship? I'm starting to wonder
Yes, you will have a successful relationship. Your Sun, the ruler of your 7th is in pretty good shape, with nice supporting aspects.
But you might have to learn to get along with potential partners a little better first. That T-square to your Mercury, ruler of your 5th and 8th, might scare a few away too early? You may seem more argumentative or aggressive than you really are, at first impression.