Brother, I feel you because I have been through some of it myself. Though I've never used drugs of any kind even before I believed, I did struggle with inappropriate contentography in the past and even now I do struggle at a moderate level with a foot / shoe fetish. It's especially hard for a male in his twenties who has been single for a couple of years already. I also struggle with some anger issues and wrath due to coming from a difficult background and my general sense of upset with many things in the world. It still takes a conscious effort for me to rein in my anger / frustration and the words I use when it comes to many situations, but I am making an effort to be more gentle and like Christ under His guidance and wisdom. I am gradually learning to not do / say to others what I'd not done / said to me, but a lot of times it is still extremely difficult for me considering how my mum and the relatives on her side, whom I grew up with, are such dysfunctional, vain, abusive people. There are still passages I really struggle with, such as submission to earthly governing authorities. Before I became a Christian, and even for the last couple of years, I've still looked at astrology (I went deeper into it than most people, not just your daily horoscope but into people's birth charts, planets, aspects, asteroids etc.) and Chinese fortune telling / feng shui. However, now I pray to God to keep me away from those evil temptations of the Devil because they are not good and true.
The actual me, in a number of ways, disproves what my natal chart says about me. My moon is in the 2nd house, which means I have an emotional attachment to money and material things. That's not true, I am emotionally attached to people, to some places etc. but it's not the things themselves that I'm attached to. I have Jupiter in Capricorn, which is supposed to make me extremely business-oriented and with good fortune when it comes to the business world. I'm the exact opposite of that. I have absolutely no interest in the modern corporate world that reflects some of the worst kinds of sins and human nature, and I'm just way too simple and straightforward of a person to make the cut. Venus in Gemini is supposed to be a mark of infidelity due to restlessness, and I admit that in the past I was not fully committed to the two women who were into me (though they were unbelievers), but now, looking back, I had insecurities and uncertainties back then that made me unable to commit. I don't know if age was also a factor but God has definitely guided me through these last couple of years that have been quite difficult but I firmly know I've become a better person because of everything. After all, God made me to be different from the bad influences I grew up with, it was His will and His plan when He made me. Sometimes I still find it difficult resisting these temptations to search for 'quick fix' explanations for fate / destiny outside of God, but upon a deeper look these practices of a clairvoyant nature all prey on fear of uncertainty that leads one who is weak in spirit to adopt their practices and deviate from the True path. In your case, drugs serve the same effect by giving illusions of joy for certain periods of time, but why go after these brief 'stimulants' when you can pursue a much more powerful and ultimately much more affirming way of life?
There were times when I had started deviating from God in my life, where I tried to believe that I can be happy and self-sufficient without Him. I even looked into Buddhism and Daoism, and it is with an uneasiness that I admit I had briefly considered adopting Buddhism, perhaps Daoism (I do come from a Chinese heritage). However, even as I was investigating those faiths, it became clear to me that God was with me all the way, and when it came to Buddhism there were a series of stumbling blocks that, when my investigation ended, led me to the conclusion that I could not accept it with my heart and my mind after all. It was God's way of telling me that while I had the free will to investigate, He was making it clear to my conscience that He would always be the Greatest and the Best, that there would be no salvation and ultimate peace found in any other path.
So, brother, the fact that you are wondering and worried means you have not deviated too far. I pray, as I am typing these words, that you will be back on the right path with God, that may God give you His wisdom, may God give you health, peace, and the will to become stronger and be liberated from these temptations. Amen. To give you a bit of hope, I have not viewed anything vulgarly inappropriate contentographic for almost two years, though I still get the temptation to watch femdom / foot fetish at times. I pray to God to guide me towards healthy sexuality as He intends for it to be, so I can love my wife without any distraction, to be with her with all of my heart, mind, and soul.