It's Never Too Late.

We're all assuredly familiar with the sunk cost fallacy, the erroneous idea that you must continue with something into which you have already invested. One example of this is what I call the “might as well” fallacy (if this has a proper name, I was unable to find it.)

I might as well finish this box of Junior Mints since there are only eight of them left.

This is an example from my own life not ten minutes ago. It's a trap. You can't undo the harmful or bad things you have already done, but that is not an excuse to do more of them. I threw away the remaining candy like the poison it is.

The point is, you can literally always make the choice to do better, regardless of your past weaknesses. You can spit it out, throw it away, get rid of it, quit, whatever. Just tell it no.