Pooh Shiesty is in federal prison awaiting sentencing after pleading guilty to conspiracy to possess firearms in furtherance of violent crime and for Hobbs Act robbery conspiracy as a result of sneaker and drug deal gone bad.

He is facing up to 40 years.

He wants the world to know he's a changed man since he committed his crimes.

"My skin glowing since I been sober can't go back to sipping lean, my mindset got different, I'm in prison before I'm sentenced they don't even know the life det I'm Living Dey trynna paint the pic of a menace," he typed.

Pooh will also faces charges in Florida for a strip club shooting.

Is it curtains for the lean-free 22-year old?