That is Procrastination at its best.
Mine goes like this:
I'll do it straight after school/college/uni
After school- need an hour to relax
An hour later- hell, that wasn't long enough. I'll do it in a bit
3 hours later: I'll do it just before bed
Beforebed: hmm, I think I'll wake up a little earlier and get it done
Morning alarm: it's too early. I'm tired. Will do it at form time and break time.
Form time: There time at break time
Break time: f*** I'm not going to get it done now.
Lesson time: HIDE 🙈