Just completed W8R3, managing 4.8km.
The podcast music is still rubbish; looking forward to compiling 30 minutes of my own music; my theory is that listening to music you enjoy takes your mind off the running, particularly if you're struggling.
A lot of running is psychological. Hills are there to be beaten. Running downhill - even a small gradient - is like having a breather.
Running on the road feels easier than running on the pavement.
Earbuds keep falling out? Mine did and it was driving me mental. So, instead of investing in expensive over-the-ear, wireless, cost-a-bomb earplugs, I bought a sweatband (79p) and use that to keep the earbuds from falling out. And it stops sweat getting in my eyes. And it stops my sunglasses from slipping down my nose.
A compression vest works wonders for us getting-on-a-bit blokes with wobbly bits. Moobs instantly vanish...