Body doubling

I have adhd and big problems in getting things started. I will do nothing for the whole day and just watch as my to do list is getting bigger an bigger. My sister is also diagnosed with ads and we found a „hack“ that really helps us both; we call each other on video chat and just go on with our normal day. For example; I wake up at 9 o’clock but can’t make it out of bed. So I lay in bed for hours, scrolling through my phone, doing absolutely nothing but meanwhile I know, I have to do a lot of things today. So I call her and just after 1-2 minutes I get up, I make my bed, I start working and she is just with me. I don’t know why, but it helps a lot in getting things started and not think about it too long. Has anyone else such experience? Or maybe an other hack how you get yourself to start your tasks?