lack lustre grass loop

Had 5 grass laps of 1.82kms planned for today but pulled the pin after 4. The legs were shot and I was having that dreaded inner battle of tough it and out run the last lap, you know it will pay off (good angel)v pull up at 4 you have got nothing today(bad angel). Bad angel won. The laps were 7.45-7.55 range, a struggle both mentally and physically.