Abused for 5 months (sober now)

Last year I discovered the amazing drug. Abused it mostly everyday at sone point I was doing sometimes doing 2 grams a night. Mostly a gram. Only a few days every now and then I would have a break. Nothing is as fun anymore and I don’t feel many feelings anymore and just don’t care about anything anymore.

It’s been around over half a year since my last dose. Is it permanent or will it slowly get better?