Thanks @eish
I just saw your next post OP, that you and your partner have trouble with boundaries.
I totally understand as I was just the same until a few years ago. It's hard for people who've been brought up with their needs respected to understand but there are lots of us who were neglected as children and consequently suffered into adulthood.
I didn't know what people were talking about when they mentioned boundaries, like literally no clue.
I attended a 12-week workshop for women who'd experienced abuse and in each session we learned a new skill ie how to identify feelings, ways to manage them, what we needed to maintain wellbeing..really basic stuff for most people but for me it was like trying to learn a new language.
I worked so hard; we had notes that I read and re-read, I tried to follow all the advice, I went to therapy etc
So it's not a quick thing but it is the best work I've ever done because now I am 💯 aware of my feelings, needs and boundaries. I can say yes, no or I'll come back to you without agonising over it. And as a result, all my relationships have improved, my income has doubled and I am now a happy person.
While I was "in training", I depended heavily on the phrases, "Let me think about it" and "I'll come back to you". It's a good way to buy time while you figure out whether to say yes or no.
I know it isn't easy. You'll get a lot of posters on here calling you a mug, a doormat, a wet lettuce and various other abusive terms but the struggle is real. You need to start the journey towards agency and it will take a little while.
You could start by looking up Karpman's drama triangle, that may resonate with you. And from there, make time each day to reflect on what your needs are and how to fulfill them.
One method is to get a paper cup and write on the outside what you need to "fill your cup". For most people it is food, shelter, positive relationships, time alone and exercise, that sorta thing.
There are lots of self help books that you might find useful but if you can stretch to therapy it will be a wonderful investment.