Is it always gonna be a sh!t show?

Yesterday was my son's kindergarten graduation. First of all I have to say I think this is a very unnecessary event IMO. So here I go, We get there and try to find a seat. My parents are late so I am out in front of the school waiting for them and thus I miss my boy take the stage. Then as they are singing their 2nd song my 3 y/o tells me she has to potty. I return to just being able to see my son leave the stage. The ceremony was literally no more than 15 minutes. Now in the gym and kids are just running everywhere. My stress level is at maximum and my wife knows it. Ok, so now we mention ice cream. Everyone wants to go to a different place. I lose my temper and we just go home. When we get home my boy now demands his gift that he mistaken saw "hidden" in the basement a week prior. I said after his karate class he can have his gift (this is because if I give him the legos he will never leave). He melts down totally and since we don't want to ruin his "graduation" day we give in and he gets the legos on a promise he will leave for lessons in a half hour. Guess what happened in a half hour? By now I'm just fried. I'm pissed and everyone knows it. I take him to lessons and I get a barrage of texts from my wife how toxic my energy is and how I poison this family with a bad attitude. I missed a half day at work for all of this. Is this my life now? Is it just a sh!t show from now on? How am I supposed to "dial" it down when this is a constant in my life? I need a little help here. Thanks. via /r/Parenting http://ift.tt/2rGNOH9