Ok. Five years huh. Well every 3d-printing tutorial must be wrong then whey they instruct to always tighten when hot :). If I cared more I would make you a video about this, but I don't. Do as you please.

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Screw in the heat break until it touches the nozzle. Next, tighten the nozzle against the heat break with your fingers until snug. There is no need to over tighten the nozzle to be flush with the surface of the bottom of the heat break. You will conduct full tightening later once the hotend is heated

At whatever ambient temperature, tighten the nozzle all the way into the heat block. Back off the nozzle 1/4 to 1/2 turn. Screw in the heat break as tight as it will go. Heat everything up to max temperature and let it sit for at least a minute.

Note: You'll be working with your printer while it is hot.

Changing your 3D printer nozzle is quick and easy when you follow these simple ... When the heater block, heat break, and nozzle heat up, the metal ... When they're cold, they shrink together tight, to the point that you can tear 

Then heat the extruder to about 230-240 and using something to hold the block I place snug down the nozzle.

If you have done 3D printing, you may have experienced the oozing or ... heat block with a pair of pliers and use a wrench to tighten the nozzle

Then heat the extruder to about 230-240 and using something to hold the block I place snug down the nozzle.

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Such a rookie mistake not hot tightening, but I guess five years of experience will leavy you asking rookie guestions on reddit