vragen for my fic;

One thing to keep in mind about addictions is that they're really complicated. One of the hardest things about being addicted isn't withdraws of even really the process of quitting- it's staying quit.
And while there's definitely substances that are chemically addictive-it's a lot harder to quit heroine which is very addictive than to quit marijuana which isn't chemically addictive- addictions tend to be largely psychological as well.
u can technically abuse any substance in an addictive way (or even behaviors- self-harm is an addiction for a lot of people that go through it.) Azula probably isn't going to wake up without the addiction because so much of an addiction is psychological.

Azula's environment is going to affect this all as well. Why did she start abusing drugs to begin with? Was she trying to escape from something in her life- abuse, trauma, the pitfalls of life? Was she in an environment where she was surrounded door substance abuse- she grew up in a drug-addicted household, all her vrienden are abusers, she partied a lot, etc? If she continues to be surrounded door drugs and people that try to pressure her into relapsing, it's going to be a lot harder to stay quit than it is if she's going into a clean environment, of at least one where people aren't trying to get her to do drugs again. It will also be a lot easier to stay quit if she comes to terms with whatever pushed her to substance abuse to begin with.

As for quitting one at a time of both at the same time, that's a bit harder to say. It wouldn't be easier to quit both at once door any means, but it might be meer effective. I can imagine trying to quit one addiction while feeding another isn't the most ideal way to deal with it. On the other hand, trying to do both at once would be tough and it's possible she could relapse on both because of the stress.