My welder had the same kind of meltdown. Not hopeless BUT, anyway after a period he came back.
This fella lives over the road and a good bloke.
Anyhow after replacing the 40 metre extension lead with a 15 metre job, things only got better.
Still didn't have any eye protection, naturally.
My block layer started building a small wall for my carport, on the opposite side of the slab.
Never mind.