These engines have constant mesh gears so basicly it wont fuck it, but the selectors may wear a little quicker.
Also when changing gears, its best just to feather the clutch.
^^ well stuff me some people actually knows how to ride a bike,
when you want to change up gears (quickly) the best long term solution for you is to...
place some pressure on the gear lever, just a light to moderte pressue don't jump on it, then give the clutch a quick flick, don't fully disengage it, just a quick flick, when you do this it should easily slide up a gear.
if your are just cruising then back of the throttle, change, throttle on, no clutch, at least i think thats how i do it, it's kind of hard to remember how you do something you dont think about.
when going down gears i think i just blip the throttle and click gears when it feels right, it;s just a feeling you learn, your probably getting it right when the gears shift easily, you should never realy have to put that much pressure on the shifter.
and don't worry you will not wear out your clutch, i ride mine (my clutch) all the time and the plates are still fine.