Almost 15, Smart, But do i have Inferiority Complex?

Well, before you ask, i've already done some research on it.

i'm soon 15 years old, and i'm suspecting that i might have this issue. uhm, i'm actually always felt insecure, and troubled by not being good enough. well lots of teens probably say that they also feel like they "aren't good enough" but i really think there is more behind this. i'm a bit intelligent, so i don't just go to fast concludetions.

for example, i don't like critisim about my weaknesses, and i feel somewhat bad about these things. i also feel that even though my english is somewhat good, i don't dare to speak it, because i doubt my voice. and i doubt my abillity. i'm afraid of stage performance, and also just performing before people.

my grades are good, i have a big family, on the outsite everything is good. i actually found out that i really do keep such a facade.  i think i'm having problems with what i want. i don't feel good enough. not for anything. also i dpn't really enjoy being with people who are above me at the points were i am weak. it makes me suffer.

To be frank, i really don't know what i should say, or even think at the moment....

i'm a bit shocked, i've actually always known, that there was something wrong. that my thoughts were too much, and that i was a bit different. i just didn't think of this.

i'm suffering from this, since i find it hard to really comunicate with people. u know, comunicate for real with my heart, not just empthy words.

I really need some help on this matter- before i decide what to do next...

Please offer me some help, any help...  Thank you.