As far as synthetic drugs, if you’ve been smoking it for a long time, it is already in your system. So, as with most other drugs, you will have to go to a rehab program to wean yourself off.
I’ve seem so many people die from using synthetic drugs because someone sprays fentanyl on the K2. Their body shuts down.
Not using can be a mind over matter thing. But a lot of times, it’s more complicated. And no matter what, it’s a lot easier when you have people in your corner. So be strong and be high off life.