Been making music a good long time through bouts of homelessness, addiction, meds, etc and my opinion it probably ISN’T the gear.
I have seen some of my friends on the suboxone Tx and it looked pretty rough, and have personal experience with all the various states of mind with psychotropics, the biggest things I suggest:
Don’t make permanent decisions based on temporary conditions. Everything passes.
We tend to judge a situation emotionally.
There may be long stretches where you don’t feel creative, inspired, etc., or even feel nothing at all for things that used to get your juices flowing. But if you ride it out, and get your neurotransmitters back in line, it comes back just as strong.
We usually want to change external conditions to remedy an internal discomfort. Start with the very basics each day, increase your awareness of your inner thought life.
Addiction destroys everything really worthwhile in life, which is hope. If one is a musician, often they have to detach awhile, in fact, detach from many obsessions and logic errors which is at the root. Usually it is based on fear, you might be afraid of losing something, so it can be self-fulfilling. Or we try to regain a sense of control and toss everything in the fire.
The point is, to be willing to be responsible to your very core about yourself. No person, object or situation can take away your freedom to choose your own peace of mind.
So it starts from within, and all else follows. More often than not, either with said possessions, or relationship, or without, we are still left with ourselves and how we are to decide on whether to struggle, or be free.
Whether you are an actual addict or not is not really the point- these are common pitfalls of the human mind, that most people are able to live with and it is not life or death. If it is life or death, it is crucial you learn how your own mind works and have mastery of it, rather than vice-versa.
What you are doing right is airing out what’s going on in your head and opening yourself up to feedback.