Notes notes notes. It's a set up to depend on somebody else's memory when you don't have to. Try to let go of blame and just look at what happened and plan ahead while you're thinking clearly so something like this doesn't happen again.
Like, when you said you'd get the check, you kinda "took it on" but by not writing yourself a reminder, you kinda didn't accept responsibiliy for taking it on.... know what I mean?

I know I can't remember, so, I have note writing programmed into my life as a normal coping strategy. Most of my friends have realized they are note dependant too. We joke about it.
But know it's a serious part of taking care of ourselves. Cover our own *** as it were...... no need to be tempted into the blame game trap. Know what I mean jelly bean?