Before I started trying Jwh018 I already had gotten to the point of my tolerance where i could smoke a few grams of dank and not feel much, so I wanted to try jwh018 and see if that would finally be able to get me high. Well I gave 5mg to my friend and he got way too high and i definitely shouldn't of given him that much. But then I try it, and I barely feel anything. So I tried 25mg and that got me pretty high, but it didn't make me tired liked i hoped it would.. Since I wanted to try to use it as a sleep aid sometimes. I'm just afraid that since my dose to get feel effects is so high I could be hurting myself, especially if I smoke it a few times in a day. And it only lasted about an hour..