I have quit marijuana 3 weeks ago and alcohol 2 weeks ago. I was d/x adhd with anxiety. I have feelings of depression due to stress from failing a course 3 years ago. I began to drink heavy and use marijuana 1x's daily. Now that I quit, I continue to smoke cigarettes. I am taking vyvanze 30 mg. for adhd, which is improving my symptoms associated with adhd. I am now expiriencing depression, lethargy, trouble sleeping, anxiousness, difficulty expressing my thoughts, and writing. Will this all improve if I quit cigarettes, continue to abstain from marijuana and alcohol, and start drinking water?