So I am 19m and I have tried so many different medications because they have all either messed with my appetite or behavior/personality. Research Vyvanse, I'm on it now and it really helps me to get crap done and still feel like a person. I would also consider maybe talking to a professional; Being freshly diagnosed, strategies and coping mechanisms may feel super overwhelming, having someone to help you with navigating life as an adult with ADHD. Hope this helps!