Hugs!
I think it is a phase which they will grow out of. Both my dd went through it and dd2 (22 months) is going through the tantrum no stage at the moment.

I usually just 1. Give her options, 2. Let her know the consequences.

Example, do you want toast or cheerios?

Consequences: put your shoes on? No!
Ok we wont be going for a walk then (then i will pretend to get ready for a walk)

Given this she still can sneak in the continuous no no no no no! Lol