I've seen other experienced riders pop a wheelie different from me, the basics are the same for all but, some people just have their own style, for example on my small supermoto 250cc, i pop the clutch at 3900-4000 rpms, pull the bars just slightly, i let my weight do all the pulling, and when the bikes front tire lifts off the ground, i just sit 2-3 inches back and the bike comes up faster then a dirty whore.lol and i never let my elbows loose, i always pull the bike towards me with the upper part of my body, the further vertical the bike goes to sustain a long lasting wheelie the more closer your head and upper body leans into the bike handle bars etc "its hard to explain on paper", and i keep my elbows locked... if you've ever seen stunters loose the bike, where the bike takes off while they are trying to grab it but can't, its because of this exact reason, i learned this the hard way. If you can master wheelies on a 200-300 cc, you can wheelie any cc bike easily! again others may differ, but my style of riding is unique to how i found riding easy, but my basics are the same.
ohh yea, practice using your right foot on tapping the rear brake, to the point you have the feeling out right in foot of how to and how much pressure, you won't need this as much as when you actually start doing proper wheelies, where you really need this, right now, you won't even have the confidense to hold the wheelie for more then a second before letting go of the throttle. but take you time, and i seriously recommend taking off your fairing and ATLEAST! and adding crash bar ends and frame sliders...
practice it on private property far from city traffic if solo but close enough to call for help if things go bad. keep checking your sproket bolts and rear wheel alignment aswell for starter, and don't worry the clutch can take it, but it will shorten the clutch life overall for sure.
step one should be you finding a long straight road empty etc and ride first gear all the way, and try clutching is at different rpms after your body gets the feeling of the maximum pull of your first gear, then when you find the sweet spot on your rpm, which is usually the torque curve, it should say in your owners manual "max torque @ 4500 rpms or max hp @ 4500rpm" so then you pop your clutch at the starting range of the torque curve, and that jolt is enough to get the bike starting to lift. the step after that is to learn to pull the bike towards you at the same time shift weight, some do it by leaning back, i do it by sliding my butt back because on a supermoto its easier like that, you might have to lean back....its kinda like this....pop clutch at the same time pull handle bars, lean back then lean forward as bike starts to lean back, you gotta just figure out the bikes balance point and then once you do you can use the foot brake and throttle to keep it as smooth and steady as possible. again there probably tons of things im missing, but the basics are here to get you started...this is specifically for a 250, on bigger bikes its much much easier as the cc's get larger, on 1000cc, i just dip the throttle and the bike does a power wheelie like it has too.lol
and once you master sitting wheelies you can, do high chairs etc. good luck ride safe.