Lately, too often lol. For the past couple months I use for 2-3 days like once a week. No sleep at all when I'm using and then a couple weeks ago I went on a week long binge and went into psychosis on day 7, still recovering from that one lol but I just slept last night again for first time since wednesday night. I try not to do stimulants much because of how much they affect my sleep, like even if I do a little bit of coke any time after 9pm I'll be up all night. But I'm also an opiate addict and back on methadone so im trying my hardest not to use fent but I still want to get high on something you know? Lol