I'm literally trying to figure out how to do this safely right now. I have a person I can get it from, it's decriminalized where I live, and there are abundant

I'm literally trying to figure out how to do this safely right now. I have a person I can get it from, it's decriminalized where I live, and there are abundant facilities for detailed testing so I can get a sense of what the purity is. Just wondering about dose and how this could work. I'm ADHD and it's been impacting me a lot recently