I noticed today that it is a lot easier to deal with most negative emotions in comparison to these particular ones. Or maybe these just tend to last longer?
Pain(emotional or mental) can be significantly softened by imagining someone being sorry for you. You can even pity yourself("oh I'm so unfortunate! I deserve compassion"), same for depression. Not a fix, you could say, but works for most of us well enough to prevent immediate breakdowns.
Loss and grief: well you can at least be sure that it will pass gradually and not ever come back as strongly and again, people would pat you in the back.
And so on.
But those three can be a lot more tricky. Especially the last one. Regret- you can tell yourself you will try to be better next time, guilt- you can sort of justify your actions and stances, but there's no guarantee people are going to comfort you(depends what is it that you did and how forgiving your peers are).
And shame? Well nothing is gonna work haha! It comes again and again, years after years and years after the event. Shit I still sometimes feel shameful about things I did in kindergarden! To the point of spitting curse words suddenly and uncontrollably.