Admir,
Your trip is similar to the one I did late last year. Something you *could* change would be to hike down to Outpost Camp after the summit just to get into a different place to sleep. Trail Camp (TC) is very exposed whereas Outpost Camp is in some trees and next to a very pretty meadow. Short hike out the next morning allows you to sleep in and take your time packing up.
One thing I would (will) do differently next time is to either leave much later in the day from Whitney Portal to TC or hike slower taking more time. While I developed symptoms of AMS and had to end my trip at TC, my main reason for suggesting a later arrival at TC is because it is so exposed. If you arrive early and there are clouds and the weather is favorable, it's not as big of a deal. If not, it makes for a LONG wait before bedtime sitting in the exposed sun/ wind etc.
All the best.
