Very cool point to open up to discuss.
I think you have your answer/direction laid out in your own words...
It's hard for me to forgive another when I see him doing something which is clearly wrong, even when I know that I myself have been very blind for most of my life, and I have also allowed myself to play freely in the game of 'I have no consecuence'. I find myself reacting to them and blaming them, basically making them responsable for a situation they are not yet responsable of, even when I know I have done the same.
The point is only YOU can forgive YOU. You know if you are reactive towards someone for doing something you've done, then there hasn't yet been the effective forgiveness and thus understanding established within yourself and towards yourself.
The point is we are able to forgive others WHEN we forgive ourselves because through our self-forgiveness we develop an Understanding of ourselves and WHY we do certain things, or think certain things, and in that understanding, we are able to forgive ourselves because we get it. There is more to the story we are opening ourselves up to. We realize we were living in such a way where we didn't know better, and only now are we providing ourselves with another option/way/solution to 'deal with' our lives and who we've become. And so when we do that for ourselves, we will naturally do that for others, and forgiveness becomes a natural expression for ourselves.
So perhaps take 'others' out of the equation, and focus on where you can still forgive yourself for NOT forgiving yourself unconditionally. Where do you not feel like forgiving yourself? What are you still holding against yourself something you've done in the past? What haven't you forgiven yet?
We can understand that ultimately we will have to learn how to forgive each other, but the place to start is with yourself. Forgive yourself absolutely, and you will be able to forgive others absolutely. Self first - self-responsibility.