Luis,
We are evidently on the same frequency (surprising, right? ;) ), since I have been heavily on this thought the last week or so.
I notice how 30 seconds is nothing at all in time, but try sitting through 30 seconds of a YouTube ad and watch how that feels, versus the unnoticed 30 seconds in a 3 hour sexual intercourse session that feels like it couldn't have used up that much time.

The concept of "time flies when you're having fun" is a great reveal of this same thing.

And the realization of that gives the power back to our minds to begin to control our own experience of time. Using our perception and emotions, we can decide how long or short a day "feels", rather than just allowing life to happen TO us.

Emotions, thoughts, and life, do NOT in fact just "happen" to me.
I DO emotion. I DO life. I go to the feelings, they don't just come to me, no matter how much our mental and emotional habits seem to have control of me at times.

The subconscious wiring we have is hard to rewire and undo, so it feels as though we may be at the whim of life and emotion and experience, but we are not. And when we cease accepting that is has to be true, we take back the power over our reality.