There is no trick. The question you're asking is more or less asked by literally every person to ever enjoy Opiates. It is such a common question that I would describe it less as a question and more as an emotion. It is a train of thought that utterly indicates an upward trajectory towards further Opioid usage.
There was a time that I might dick around with days on and days off and all that jazz, but time has taught me that it's basically a waste of time and energy.
You are lusting after something that you know, basically every person loves so much that it robs them of their soul and asking if there is a way for you personally to avoid the thing that has happened to everyone else before you. You're not stupid or ignorant. Like I said, we've all asked this question at our respective points in time.
When someone tells an addict: "there is a 99% chance that this will end in total ruin for you" the addict hears "so you're telling me there's a chance?!". This logic is what carries every addict through every sordid compromise they make with themselves and the universe on their way down.
It's just you and your girlfriend in your apartment. You know she has cash in her wallet. You know there is no way of possibly denying that you're the one who took the money, but you know you're gonna get high, so you hold on desperately to the most insane ideas, like "maybe a burglar came in and took it", "maybe you never really had money to begin with? Darling, are you hallucinating?".
My point is, we all know how it ends. WE KNOW HOW IT ENDS. You will either continue to take Opioids and likely escalate your dosage as tolerance takes hold. Tolerance will take hold "one little extra dose" at a time over the course of weeks until something like financial or social constraints force you to look at yourself objectively, at which point, you will likely be entrenched in a more severe way with the Opioids. The more you take, the longer you take it will make it harder and harder.
Every time you take Kratom, you are strengthening your bond with it. I basically look at Opiates as being like Sauron's One Ring of Power. Everyone knows how great it is, how great it feels, how powerful it makes one feel. Everyone also knows that to be with The Ring is to be corrupted. Some are corrupted more than others, like say, Gollum and some are like Bilbo Baggins, who still thinks about and lusts over the Ring even without having worn it for some time. It is a feeling of lust that he will always remember.
There is no key. Using Opioids recreationally tends to lead to dependence. They are quite insidious really. I had been taught for my entire childhood that Heroin created addicts, devoid of independent thought or feeling. I knew from personal experience how drugs ruined families, lives and people. I knew I would never touch a drug, as then, I could be certain that I would never become addicted. I remember thinking, "what if I get force-fed Heroin and become an addict?" That is the only possible way they could get me.
Well, my first experience with Opiates really changed my perspective. I suddenly knew that I would be the only one to ever use Heroin and manage that usage successfully. I knew it would be difficult, but I just had to be smarter than the drug and bolder than those who had come before me and failed. It felt so good that nothing else mattered...