Well, the first thing to do, of course, is to give it up completely. That's already become obvious to you in the context of the consequences, hasn't it? If you take this crap on a regular basis, your Soul's Energy Resources will be expended in large quantities just to recover, because you are literally forcing your Energy to be expended to rehabilitate and cleanse your body of this slag, which takes a long time and can be unpleasant. If this happens on a regular basis, your Body will be constantly exposed to these toxic factors, affecting your Soul in such a way that your Energy Resources will be permanently drained, so you will feel a lack of Life Force. Not to mention how this affects Consciousness, your organs, the Chakra System and Bioenergetics in general. So yes, first and foremost, resolutely refuse to use such substances. That's the most important thing. Always to gain Power a person first destroys limitations, destroying in himself what restrains and does not allow to Evolve, and then builds the foundation for Growth. It will be great if you are able to give it up completely.
Next, you should deeply engage in Purification. You need to Cleanse these slags, because they not only settle in the Body, but also in the Soul. Because such substances essentially disturb the Energy Current in the Spiritual Body, it should be restored if it is broken. The human organism, in principle, is created to recover, many of these effects that you are experiencing, they will go away. But in the context of gaining Power this is not enough. You don't want it to happen again, do you? Cleanse the Aura and the Chakras. Do Runic Cleanings. Do Meditations for Healing. When you have let it all go, it is now important to keep your Soul Energies High. The Rituals of the Gods may suit you, as they have a very Blessing and Healing Effect, indeed. After all, ask your Guardian to help you. You will get help, but don't make the same mistakes in the future. Respect your Body and Spirit as much as you respect outside help.