6 weeks a go I couldn't run down my drive let alone 25 minutes. I find that after I did my 20 min run last week the last 2 runs with walking in them have come really really hard. Tonight I'm meant to run for 25 minutes and my head cannot get round it.
I'm looking forward to it but I really feel like I have met a mental brick wall and cannot see myself completing it.
Does anyone have any tips on how to get focussed mentally?