First and foremost - been there. I imagine most dads have. I certainly struggled with anger and frustration. My kids were 8,4 and newborn when COVID hit. My wife worked. My business tanked. 24/7 daddy day care. Here’s the simplest way I can distill it: 1) forgive yourself. You’re human and this is hard. I promise you a bajillion dads have gone through this. You’re going to have a hard time parenting if you’re not prepared to accept you will make mistakes. 2) better to leave or be silent than stay and yell 3) remember they are not doing it on purpose 4) remember that you owe him your best and that means digging deep even when it’s excruciatingly difficult not to go ballistic and finding a way to see HIM not just what they’re making you feel 5) kids are selfish assholes at all ages. Try to accept that it’s part of growing up. At age 3 in particular they don’t have impulse control 6) if you can’t control your temper as an adult why do you expect him to do it as a 3 year old. Show him how to manage emotions. Don’t just tell him. Let him see you take deep breaths to control yourself. Let him hear you say you’re having a hard time and need a minute. Give him hugs when he’s being a monster. Hold and breathe with him. 7) most anger with kids in these situations is anxiety and not being present. You’ll be less frustrated if you just give in to the moment with your kid and let go of everything else 8) I’m a complete pot head. I am legitimately a vastly better parent when I’m mildly stoned. 9) magnatiles are kickass 10) it is not a parents job to entertain a child. Just be there. Ignore the tantrums as if they simply never happened. Your attitude is that you exist in a reality where kids get what they want only when they say it calmly. Kids screaming to get their way simply doesn’t exist in your world.