How do I let go of resentment that's eating me up?

You can see that your resentment is corroding you more than it touches whoever it is aimed at, and yet you cannot seem to set it down. That is the cruel thing about resentment: seeing it clearly does not automatically free you from it. You are not failing. You are up against one of the most stubborn feelings there is. Resentment feels like it does something to the person who wronged you, but it mostly does something to you, running in the background, souring your days, while they may not even know. Carrying it is like gripping a hot coal to throw at someone. The one who gets burned, hour after hour, is the one holding it. You already sense this, which is why you want to put it down. Setting it down is not one decision but many small ones. Start by letting yourself fully name what happened and that it was wrong, because resentment often clings hardest to what we have not honestly faced. Then, gently, each time it rises, choose not to feed it. You are not excusing anyone. You are refusing to let them keep renting space in your mind.