Morning HIT-Hit me too hard

Foam Roll
Stretching

Morning HIT:
20 Swinging Kipping Pull-ups
20 Ring Dips
Ran 200M,
Rest 2min

Plan was do this for 3 rounds, with a rest intervals of 1:1, 1:1.25, 1:5, but on the second round, the I hit muscle failure on the 4th rep of the ring dips, I did a few more ring dips, then ran. I came back, did about 10 pull-ups, was really feeling it, dropped from the bar, then did another set of 5, I skipped the ring dips and just ran 200M. In hindsight, I should have done 3 Rounds: 18 Kipping Pull-ups, 10 Ring Dips, run 200M, rest (with a rest intervals of 1:1, 1:1.25, 1:5)

So, there I was this morning, facing muscle failure in ring dips very early. I rarely plan HIT session so poorly and over-estimate my capabilities. I did not choose to "suck it up" and knock out all 20 reps of ring dips. Why? I did not see the point. I was already at failure, all "pushing through" would have done is wrecked my training for the next few sessions (best case) or caused in injury (worse case), not to mention taked about 45min extra, which would have made be late for work. What about the fact that I quit. I rarely quit, but I did this morning. At this point in my life quitting or finsihing an exercise sessions undertaken electively does not me a darn thing to me.