<human>: I'm mostly a lurker, but have learned a lot from this sub and wanted to share my experience for anyone else who might be getting into distance running and feeling ambitious in their training.

I was working through Hal Higdon's Novice 1 Marathon training program to train for my first full marathon - Richmond - this November. I'd only done one half marathon before with no structured training routine. I was really excited for Richmond and I wanted to do it right, so I was sticking closely to Hal's guide in terms of mileage...but didn't pay attention to how I did those miles (intervals, hill training, etc.). 

A few weeks into Hal's program I ordered a bunch of books on distance running so I could learn how to optimize my training and quickly realized I needed to pay attention to hill and interval training. That's where I made my first mistake.

I stupidly decided that the best time to introduce hill training into my routine was on my 13.1 mile long run halfway through Hal's program. I dedicated 4 of those miles to running up and down a steep hill and ran at my fastest pace for the rest of the run. It ended up being one of the longest, fastest, and most strenuous runs I had done to date - and I felt great after.

When I went to run again the following Tuesday I collapsed shortly after jogging out my door. That was three weeks ago and, after an expensive couple of visits to the doctor and an MRI, I was told this morning that I have a stress fracture high up in my tibia. The doctor thinks it was because I did too much, too soon. I agree.

I can't run for six weeks and have pulled out of Richmond in November. I'll run again as soon as I can, but I've definitely learned my lesson: You can be as mentally ambitious as you want, but you need to recognize your body's limitations and allow them to temper that ambition. 

I know that there are other stories like this on this sub but I wanted to add mine to the mix.

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: I decided to run the longest, fastest, and most strenuous run of my life all at the same time during training. Got a stress fracture, and had to cancel my race. Don't do what I did.