Clutch won't disengage

I recently rebuilt my engine on my '02 R6 to fix the second gear issue it was having. I also replaced the clutch lever and cable since they were worn out. Once I got the bike reassembled, i put the bike in gear and it wouldn't roll at all. I gave it gas and still nothing. Tried all the other gears but nothing. After researching a bit, some people said the front sprocket might be detached, but mine was fine. On the stand, the wheel spins at about 5 MPH in first, which is normal but I can hold it with my hand and the bike won't stall and as I go through the years, the wheel slows to a stop instead of going faster. On top of that, giving it gas does barely anything at all in low gears and nothing after 4th. I'm at a complete loss, I don't know what to do anymore. Any ideas?