Is there anyone else like me who could help?

So I have been feeling really depressed lately and last week I went with my mom to see a person who deals with adolescent mental health and he diagnosed me with mild to moderate ADHD and seasonal depression... Ive been finding it really hard to do anything since being diagnosed with it because its making me feel like more of a freak than what I thought I was before... Its to the point where I don't want to go to school because I feel so stupid and mental now. I haven't even told my best friend about it. My mom has severe depression and so did her mom and her dad (my grandpa) had ADHD so I know its because of the genes but that still doesn't make me feel better... It seems like no one has the same exact thing as me... I would have never guessed that I have ADHD... I really don't understand that part of it because im one of those people who learns WAY quicker than most people so that causes me to get bored and distracted in school. It all seems like a waste of time waiting for other people to learn stuff that takes me 1/10 the time to learn. Plus im not even that hyper either... I fidget and have to have something in my hands to keep me occupied but other than that I would consider myself pretty average. As for the depression its only seasonal and it being sunny out and spring and stuff im doing really good right now. The man who diagnosed me highly recommends me taking pills for ADHD and going for therapy every week but really I see no reason for therapy until winter and as for pills he wants to put me on the same ones my best friend almost committed suicide because it messed him up that much. I'm scared and tomorrow my moms taking me in for a doctors appointment to make sure im healthy so I can start pills.... She says I have to take them so that I will get better but I really don't want to. I'm already suicidal enough in the winter as it is and I don't even want to know what ill be like later with pills... Really I just want to know if there's anyone out there who was diagnosed with the same thing and what pills were prescribed and how they affected you just so that I can look them up. Thanks.