Scary effect of blaming someone

If you blame someone, it usually does not help that person to change as you would want to see him/her change
If you blame someone, it does help you to justify yourself for taking less responsibility than otherwise
So, blaming is not only ineffective to help others, but also ineffective to help yourself.

and consider this:

What if the person you would want to blame is, in fact, doing his very best to cope with or deal with the situation to the best of his capacity? That's possible even if you might not see it.

Your role and his/her role is different; your capacity and his/hers is different

so, you cannot make a correct judgment of how well he is doing, from your own viewpoint

Therefore, when you are tempted to blame someone, do not give in to that temptation, but it is better to use that occasion to check yourself whether you are doing your best to deal with your situation to the best of your capacity or not

Do not feed your urge for temporal satisfaction by blaming someone, ending up as a loser.