Don't be scared, I've gone through all that, and look at me!

*belches and eats cheese of discarded mcdonalds rapper*
Seriously,
You are in the act of becoming a fully intellectually developed human being. Its great, its a fun ride, your thoughts will keep changing and getting better each time and the changes will start happening faster and faster, soon what you think one week will seem juvenile and absurd the next. At least thats what happened to me.
I'm nearly 20 and this year (19-20) has by far been my biggest yet. You are probably at a stage where you think you can't get smarter but believe me you can and will, drastically smarter. I assume you are maybe 14 or 15 and these strange deep thoughts are just starting to come to you. I understand it is hard not to feel like a genius. Especially when your friends don't seem exceptionally bright.
But you will humble and start to understand that the more you learn the more you realise you don't know.
Not me however, I know all

And I'm guessing you feel as though you are infinitely more intelligent than your parents. Well I'll tell you something that most will try to hide from you;
YOU PROBABLY ARE...
BUT
They will definately be more intelligent than you in some ways. Maybe not at having deep philosophical thoughts but they will know how to NOT fuck your life up which is often a byproduct of premature deep thinking.
Stay away from drugs for now, you will undoubtedly be drawn to them like a magnet very soon(unless you have already) but despite what people say, weed in particular fucks young people around pretty badly. Mainly due to the fact that it is billed as harmless, in reality you become dependent on it and it drains away motivation and energy, all you start thinking about is weed and how wierd it would be if weed could talk, This is very detrimental to a developing brain.
I'm just saying.
Don't lose your friends just yet, they'll catch up(enough), untill then, study them like the simple organisms they are. Observe their behaviours and take note, learn about people by watching them. This will help you in the future and will make being around them bearable.
good luck!