When the car is on and cold, i push the clutch in, i can engage the clutch into first/any gear, after it starts to warm up, I try to engage it into second or something and it won' engage. so i'm stuck in nutural.

I adjusted the screw. In lows the idle, out raises it. Thus the reason why its all the way in. I tried adjusting it at first when the car was on and it just raised it each time I let the screw out.