so ive been using roxys for about 3 years now and my tolerance is way to high,my friends usually inject it for me,by since their not around everyday i would really like to know how to do it myself,yesterday i tryed 3 times but could not get the blood to draw into the rig,and another thing ive seen some people put a flame to it and some people just let it disolve can anyone please help me with this,any tips would help.thanks