Making errors because you tried something new, is a good thing because you are not staying stagnant in a place that is unfulfilling. You are making an effort to evolve and change up what isn’t serving you anymore. This is a strength, not a weakness!
You may also not realize that you are sabotaging your own happiness. If it is really easy for you to find fault with everyone on your dating apps or anyone you meet in general, you are creating an excuse to protect your heart from further wounds.