Theres a reason why seniors do senior level work and juniors do junior level work
The speed of comprehension, technical competency, speed of testing and documentation all plays apart. This will determine how late u sleep at night.

There is no difference between peak and off peak now. Its whole year peak unless u are bad. When u lack manpower, thats whole year peak for u.

Client have 1 year of cooking of the books to do their financials and auditor have less than a month to audit them

My dear student, have u tried not sleeping for days on end? have u tried doing nothing for an entire week but work and sleep? your weekends are burnt doing catch up, you take MC to catch up on back log. Try doing that for months? Are u ready to throw your life away for your branding? Branding to what? commercial? industry is invaded by malaysians by now, low balled to the sky.