303abuser Nice one, sounds like a solid plan for the year, you’ll be fine for the 50k in September after that much training
Ultras are definitely more mental and physical, if you can overcome that voice which wants you to quit the more it hurts you’ll be fine. For me, I would say its mainly mental, I usually blame nutrition, dizziness, heat, physical condition, but fundamentally I could have carried on each time (binned 2 around 80 miles), just at a much slower pace which annoys me.
My mate said to me, the ultra game is all about finish lines, not finish times, which is so true, and I need to take that advice this year. Always have a time in mind and when I drop off the pace it gnaws away big style