Slow down

So about midway through my workout my body started to shut down. I don't know why but I was out of it. During cardio I couldn't stop watching the minuets tick away till it was over. Basically I was an all out mess today, but I didn't quit. I didn't stop. And I was not about to give up. I feel better knowing I finished my workout

Today's workout:

Hanging single arm dumbbell curl:

Set1-2:12.5 lbs 12 reps per arm

Set3-5: 15 lbs 12 rep

Dumbbell flyes: 

2 X's  10 lbs weights 20 reps 

Repeat 5 X's 

Shoulder press:

15 lbs 25 reps

Lateral raises:

10 lb dumbbell 12 reps per arm

Repeat 5 X's

Military press:

15 lbs 20 reps

Dumbbell row:

20 lbs 15 reps per arm

Repeat 5 X's 

Arm blaster bicep curls:

30 lbs 15 reps

Repeat 5 X's 

Hercules curls:

30 lbs 15 reps

Repeat 5 X's 

Stairs 42 mins