Coke and Meth are not similar. I used coke for 27 years, a lot. I quit completely ten years ago and moved.....right into the meth capital of California US. I've been using for a couple years now and I can tell you that meth is the nastiest drug I've ever used. Coke was always clean, good high and the only real problem I had was the cost. I did it only on weekends and I was ready for work by Monday morning. Meth, on the other hand started out alright for the longest time, I was up to using a 16th every week but about four months ago, after using an entire 8 ball over 7 days straight, oil started pouring from my chin, literally pouring. It eventually stopped, hardened in my pores and caused a cyst and small pockets of hardened oil on my chin. Later i developed an abcess on my neck and had to have it drained. Then the oil started building up in the pores on my legs and arms and when I broke them open the oil did not stop for a long time and the wounds wouldn't heal very well. Now I've developed another abcess on my neck, much smaller, they wont even drain it, and just today I found that the top of my left foot is a basically a large abcess. The worst one of all was when my left calf filled with this oil, it's the oil that our skin produces to protect our skin, and it swelled so large it burst through two sores and squirted like a fountain.
Needless to say, I've critically reduced my usage amount but now i'm finding myself using more often and not getting the "speed" effect any longer, only high. I don't know why, but it's obvious I'm becoming too used to it being in my system a lot of the time. Reducing the amounts reduced the abcesses and oil bumps, not "bugs" those are imaginary, these keep pouring out oil and don't heal for weeks. Now with this one on my foot it's time to stop, I know I should have sooner but apparently this is going to keep happening. The doctors don't know why my oil glands are reacting like this, they've never seen it before, but wish me luck in quitting, I'm going to need it i think.
To finalize my post I'll say it once again: YES there is a big difference between Coke and Meth.