You are a person with flaws. That's a tougher one.
It's always much simpler to see other people's weaknesses than it is to see our own. Recognizing our spouses' imperfections is one thing, but trying to "fix" our spouses as we see fit? Well, that's just a bad idea.
Your spouse will become dependent on you
If your spouse buys into the notion that you're the one who can solve all his problems, he will come to count on you to do just that. If you do not allow your spouse to figure out how to solve problems on his own, he will stop growing personally and become ever more reliant on you.
Lack of equality undermines intimacy
When one person is trying to control the other, it puts both on unequal footing. The person in control thinks she knows what's best that the spouse she is trying to help is the "fixer upper." This lack of equality in your marriage will kill the intimacy in your relationship.
Your spouse will grow to resent you
She married you because she loved you, and you loved her. During the courtship phase, you looked at her with stars in your eyes and told her that she was just what you were looking for. Now, when you pick at her behavior instead of validating the parts of her that are wonderful, she digs in her heels. People rarely change their behavior just because someone else says they need to.
You'll feel like you're breathing for two
It's difficult enough to run your own life, let alone try to run your spouse's life as well. When he resists your efforts to control and change him, your job grows doubly hard. It takes a lot of time and energy to constantly be searching for ways to get others to do what you want. (After all, you know what's best, right?)
You rob yourself of the opportunity to chase your own dreams
When you expel all your energy trying to change someone else's behavior instead of your own, your needs fly out the window. It sounds contradictory, but it's true. What would you like to do with your life? What dreams are you putting on hold as you spend your time trying to change your spouse?
Focus on appreciating your spouse. You fell in love with her for a reason. What was it? How does she complement and complete you? We all want to feel loved, accepted and have our feelings validated. Love and acceptance bring out the best in others. Criticism and control bring out the worst.
Benjamin Franklin gave this sage advice: "Keep your eyes wide open before marriage, and half-shut afterwards." Hopefully, you went into your marriage with your eyes wide open. You saw your companion's strengths and weaknesses. Keeping your eyes half-shut after marriage means tolerating your spouse's small foibles and flaws rather than focusing on them. Believing the best usually brings out the best.
In the popular movie, "Frozen," one line of the song "Fixer-Upper" says: "Everyone's a bit of fixer upper." Keep in mind that the only person you'll ever really be successful "fixing" is you.