^ OP, Meth addicts typically keep using, chasing that first high. But you will never get the high of your first use. And because your dopamine is depleted from using, you're not going to feel euphoria no matter how much you use. You need to accept that and move on, you're chasing something that doesn't exist at this point.
You are clearly NOT in control and you're right, it's not a big issue it's a HUGE issue. It's weird to me that you can see you're in control and then just a few sentences later admit you're a mess. The meth is messing with your head, convincing you that the only reason you're doing it is because you miss the high and you don't have a problem. But you've gone into psychosis before... if you continue on this road you are risking your own sanity. Not to mention the damage to your body, meth is full of toxic chemicals. Every time you use it eats away the enamel on your teeth, which will lead to rotting teeth and gums eventually. And that's minor compared to what else it is doing to your body... damaging blood vessels, increased blood pressure and heart rate which can lead to stroke or heart attack, lost muscle tissue and bone density from extreme weight loss, permanent facial tics and muscle twitches, open sores on your body, and a compromised immune system. These are just a few consequences of meth use. By using, you are doing permanent damage to your body. As in, forever... Think about that.