Subutex withdrawal???? or not? week os usage

I use drugs from time to time. As my life got better, I started using less and less. 1-2 times a month. Mainly aderall, grass or subutex.

The last 3 months I didn't use anything. But then i was really depressed for 2 weeks and I quarreled with my loved one and used Subutex😞. Tablet 8 mg, about 3 days + shared with a friend. Then everything got better, I was very ashamed, about 4 days passed and again i decided to try Subutex, because I liked how creative I was on it and how I analyzed my life in details in my diary(very stupid, what i was thinking about?🤡). I used it for 2 days and now I am afraid that I will have withdrawal symptoms, I threw away half the pill and decided that I would not do it anymore. I told my relatives about it and got support. what should I do to survive this, I have exams starting now and a lot of things to do. Now I feel that the last dose did not give any effect, on the contrary, I don’t want to do anything and I’m a little scared, I have problems with breathing. I don’t feel anything terrible, but I haven’t slept much all this time and I can’t sleep. Its hard to think and write this...

I used to use Subutex once every 1-2 months. I don't remember that I felt terrible, but after that I took something else, smoked weed, for example... At the moment I don't want to use anything else, not even alcohol.