Yeah I've only been flying jets most days for the past 20 years...
Since you clearly know nothing about the subject, let me just say that a turbojet engine is quite capable of spooling up quickly enough to get an aircraft that is already at flying speed, safely back into the air. Even from ground idle. In fact, it is often demonstrated during certification.
Again, if you knew anything at all about the subject, you would know that it is SOP in a non-FADEC aircraft to have a clear idea of where max T/O thrust is on your power lever. We even used to mark it on the quadrant on some jets I flew. Adjusting to an in-limits temp or RPM then becomes a quick glance and an equally quick adjustment. If you know what you are doing, of course.
You don't use brakes on T/O, unless of course your engine just quit - right?
If he really was practising takeoffs, he probably overheated his brakes. Doesn't take much.
Anyway you have made enough of a fool of yourself, now off you go back to your MS flight sim...