Hi barney, i really do sympathise with you, i know how hard things can be.
So sorry to hear about your Dad passing away last year.
This is obviously a very stressful time for you.
And your little one isn't making it any easier for you!!!!
When my 3 year old has tantrums, i now ignore her.
I firstly tell her that when she can behave, we can be friends.
If she's crying for something, e.g. cbeebies (yet again!!!)
I'll tell her that when she's been quiet for a few minutes, she may get it.
Then i feel her tapping my arm and smiling, just to let me know that she's being good!!!
Kids of this age love making a game of everything.
As pack said with the getting dressed routine.
I tell her and her 5 year old sister that there's no way they can beat me at getting dressed.
Guess what? they win everytime!!!!!
Amazing what they can do!!!
Good luck. xx