easily addicted

I have a daughter, she is 22. she has had anxiety and panic disorder and some depression. she smokes weed to help that. I don't love that but it helps her feel normal. But lately she has also started drinking and smoking cigarettes. she only drinks right before bedtime, she says it helps her go to sleep. She drinks the same amount everynight. She started smoking cigarettes because she has been addicted to nicotine for a while 1st she vaped, she stopped that because she got sick, so she changed to chewing nicotine gum, and now cigarettes. she has an addictive personality. but I am petrified that this will get worse. like she will want more when a few drinks don't work anymore. and she is depressed, but I think mainly because she needs a job and her anxiety and panic makes it really hard to find a job she can do successfully. I can't do anything about the drinking because she is 22 and an adult. she is gonna do what she wants to do. I don't know what to do to lift her spirit and bring her out of this saddness and get her to not drink and to stop smoking... I feel lost and nausous and cry alot now....... she only wants to feel normal... She is a sweet loving young woman, but this changes her a bit, mainly out of saddness and frustration I think. Any words of encouragement or advice will be appreciated.