Follow the directions on the bottle. I get mine from Amazon. Too much can cause diarrhea. Terri is right it really helps with sleep.

Check your B12 and B6. These vitamins are essential for nerve endings. Also need yo be taking magnesium glycinate. My neuropathy is gone now. 8 years .

That looks very uncomfortable, my sympathy. I looked it up and here's one thing to consider:

Foot and Skin Care: Inspect your feet daily for cuts or sores if you have numbness, wear supportive and cushioned shoes, and avoid direct extreme heat (like hot water bottles or heating pads) on numb areas

Also, try to see if you can get a referral for physical therapy. They might be able to give you some pointers to help reduce that discomfort.

I've had some discomfort extremely with my feet at times, having to use even walking sticks to help me when I get up out of bed when it's really bad.
In my case I've used soft ice packs to put my feet on for like 20 minutes on and 20 off to help relieve any swelling. It works. Also, when able to, try elevating your feet when sitting down. Take the swelling out of when they occur more if your feet are hanging down.

And believe it or not Crocs have been my friend. I didn't like those shoes before I thought they were bulky or weird and then when I put them on I thought they feel so cushioned I couldn't believe it. The strap that goes around the back I actually put it on top of the shoe so I don't feel pressure on my heel. It's the material made with that really helps me feel like I'm not putting too much pressure on my feet then when I try walking with. Hope some of these ideas help at least initially.

Any certain milligram?

I started taking Magnesium Glycinate ard 7months ago, it has done well , especially in my Sleep, its noticable,