Transitioning from months of underutilization to suddenly being expected to actually work at my 100% capacity for 8 hour days. The muscle that allows me to do i

Transitioning from months of underutilization to suddenly being expected to actually work at my 100% capacity for 8 hour days. The muscle that allows me to do it doesn't come back over night, it starts as an absolute fight where the only option is to go to a public place and sit myself down and say no bathroom breaks until 1 hour worth of work is done.. And on and on, slowly building up. Until finally my normal 100% is just an effortless thing I do as a biproduct of sitting down and starting. Now in the office I did have of course 3 or 4 month periods in a go where the only thing I had to do was browse reddit and Slickdeals.net... when work came back to me it was easier because of the psychological fear and pressure of just "what if someone sees me?"