Performed Dermabrasion on myself. Is this normal? Please help! (Photo)

this is terrible, never do at home treatment like this! you will be left with permanent scarring and hypopigmentation if you do not do appropriate skincare at this time. sandpaper isn t used for acne scars for YEARS even if dermabrasion is used its with a diamond tip and controlled with pre treatment and post treatment. I suggest you see an expert immediately. Best, Dr. Emer.

I am so sorry for this, unfortunately when you self treat, no matter what condition, either skin problem or hair removal or any other medical condition, you end up spending more than saving money.
I dont know the source of your sand paper but if it is not a medical grade, it may have ingredients not safe for human and human skin, the glue they use to make the sand paper might have leached out and have interacted with your skin (based on what I can see from the picture), anyways, the best option at the moment is to go and see a specialist to treat the acute condition you are having now.
Stay safe!