Hi Celtic, remember this is not/should not be about pointing the finger at yourself or blaming yourself for not having said "No" in those situations. They were not your fault.
At the times you weren't able to say "No". It wasn't about you thinking about and misjudging the situations, it wasn't about you taking "the easy" option, it was about you not being able to say "No".
And let's face it, they weren't easy situations, were they? It's not like someone asking you to do them a favor when you haven't really got that much time/don't want to, is it?
You probably felt intimidated, powerless, hopeless, scared (??)...........didn't you?
And considering your past...............
And I know you'd never blame the victim of sexual harassment or rape for what happened, would you
Afterall you didn't say "Yes".
So you weren't able to say "No", you didn't at the time have the skills/ability to say "No" as I'm sure plenty of other people in your situation wouldn't either.
Well, now............you have a T to help you with those skills/that ability.........now you can begin moving on. It might not be easy, it might not be quick, but.................

And let's bring it back to the purpose of the homework.........your mother?
I know the task of saying "No" to her (never mind anything else/anyone else) isn't going to be easy. But perhaps when you're thinking more about yourself and putting together the effects on you you may feel a little stronger/a little more confident in saying "No" just a little bit more in time????
And if ever you're trying to justify why you should go along with even a silent "Yes" e.g. "Well she is my mother........", "She's one of the few in my family I have contact with, so............", "Well she's had things hard, so.........." then really seeing the effects on you might offset that a little, make it clearer that you shouldn't have to......., that what she's wanting is unreasonable.
So try to make the goal of the assignment (whatever you want that to be) work for you, be helpful to you.

And just like Lady Lindsey said take it slow, in your own time, stop/take a break if its not feeling "safe"/triggering and get straight onto some distractions, grounding techniques, something/anything else.



Alison