Guilt and resistance. What is guilt? It's a feeling of remorse or responsibility for a wrongdoing real or imagined. What causes guilt? overthinking due to resistance? What we need to understand is that shift happens and it happens to every single human being on the planet animals to you are going to mess up and make choices that will lead to unpleasant experiences.
People can sometimes feel like because something didn't happen the way that they expected or hoped that it's a bad thing, and that includes our own actions. We are our worst critics judge ourselves more than anyone else. This is resisting. We are stuck in our past thinking about it repeatedly trying to think of what we could have done to change the situation. Do you know what this is? You are trying to change the past don't have a time machine you are not the doctor driving yourself crazy overthinking about it will not make a difference at all.
You are not your past you are what you do in the present moment right now. I know it hurts. I know what it feels like it shouldn't have happened, right? If you accept that it did happen and that you can't change it, then you can use this as a lesson. You just learned what not to do next time. Do the right thing now and forgive yourself and move on.
You can't forgive others or yourself when you're stuck in the past. The power of your perception, your attitude about a situation is strong. You can take this guilt and turn it around into a lesson and be better for it. That is the whole point isn't it to keep being a better soul with each experience.