Believe - you are receiving great advice and doing very well!
The early months of this are so hard. We have to trust the process and know that better days are coming our way, because they are!
Regarding sleep, well into my ex’s MLC, my sister turned me onto Solgar (brand name) Calcium Magnesium Citrate with Vitamin D3. Don’t think the brand matters just stating what I used. I like the liquid format and prefer the blueberry flavor. It is all natural, helps with anxiety and sleep. Maybe check it out but if you try it, more is not better as it can cause a runny tummy.
Just keep reminding yourself you did not cause this nor can you fix it. Emotionally healthy people with good coping skills do not go through MLC.
Me 41, H 47, M 15 yrs, S11, S13 BD 1: 11/4/14 we work on it; really I pretzel myself BD 2: 3/31/15 H goes down to "dorm room" 8/15: H back to MBR 10/15: H back in dorm room 1/18: H files, now divorced