Day 8, almost able to do stuff

First 4 days I wasn’t able to keep my head up, now I’m able to move but it takes more effort than I was hoping. Still not able to “just do things” without feeling fatigue. I went from 500 mg to zero overnight. I’m just waiting for essentially the same energy level I had when having the 500 mg, and I’m pretty disappointed it’s taking this long. Should I give it 2 weeks?