The past no longer is. The future has not yet come. So look deeply at life as it is.
If you disagree with someone, make a conscious effort to step into their shoes and see the situation from their point of view. Even if you continue to disagree, you will gain some understanding.
A very good practice for preventing anger in the first place is to become masterful at listening.
Give quietly; don’t make a song and dance about it.
To make no mistakes is not in the power of humans; but from their errors and mistakes the wise and the good learn wisdom for the future.
Think of how unsettled you tend to feel after an angry outburst.