Would these negative feelings go away if I stopped smoking weed and also quit smoking?

I've been clean from smoking weed since yesterday and today I'm smoking cigarettes for the last time and then I just want to focus on my future. I'm 17 years old and have been smoking weed regularly since June and sometimes even daily. I've been consuming tobacco properly since I was 15 and have also drunk alcohol. I've given up alcohol but smoking weed has changed a lot for me. I have more anxiety, am more depressed, always feel empty, am sad and lonely, sometimes I even shed tears because I feel so miserable. Starting to smoke weed is the reason I was under a lot of stress beforehand. I was reported to the police, which was stressful enough, arguments at home, school, and I didn't have many friends anymore. It's the same now, but when I light up a joint I suddenly don't care about what I've experienced. I always have anxiety attacks because of smoking weed and mostly feel empty. I stopped yesterday, or rather smoked for the last time and from tomorrow onwards I won't smoke anything at all, but the thing is if I want to quit but there's always this fear in me. My thoughts and feelings say yes, you'll be traumatized again, you'll hit the ground again and just cry and you'll be the loneliest person, but I know for sure that life isn't better as a stoner? Firstly, money, secondly, health and your quality of life? And learning ability. I've also become slower in the head because of that. When will these feelings of fear, these negative feelings disappear again when I'm clean and don't smoke anything anymore, not even tobacco.