Honestly, after all these years of using various drugs, the only thing that sticks with me all the time is amphetamine. I took breaks, but the longest break was 6 months since 2001. Although I managed to reduce it again only for the weekend and without exaggerating the amount as before because realistically there is no need to take as much as possible to feel better, sometimes you achieve a counter effect if you overdo it. Every medicine is also poison! Amphetamine I love because it has never let me down in what I ask of it. With other substances there were ripples..but amphetamine is a proven thing. It's still too affordable for me because here where I live almost everyone takes it and I think this is the only place on the planet where it's easier to buy speed than weed! And most importantly, weed is more expensive and weed dealers are arrested more often than speed dealers!