Crit racing
Crits are all about surging and resting and surging and resting. Training with intervals teaches your body how to recover quickly. Also - technique is more important in a crit than in a TT or road race. Cornering is a skill that you need to learn and practice - taking the right line and carrying your speed through the corner - otherwise you are always "chasing back on" Also - your pack position is important - where are you during the race??? You want to be in the front 1/3 - further back is where the "slinky" effect is worse and you can get caught up in crashes. You may want to post this is the race results area - more people with race experience will see it there and can add their two cents. Hope this helps.
"Character cannot be developed in ease and quiet - only through experience of trial and suffering can the soul be strengthened, ambition inspired and success achieved" - Helen Keller