my friends are always telling me where are they going or where were they last night

they invite me nowhere
they tell me about nothing
okay, i dont ask what they are doing but anyway

they are just telling me how cool and awesome it was being there and there, im like okay nice.

)---: am i just so boring and stupid

It sounds like you need to make new friends. because the one's you have right now are not including you.

I agree with what they said, ^ you definitely don't have good friends if they just go around without you and don't feel like hanging out with you.. Find some new friends, or even so, maybe you should go up to one of them and invite them to do something. Who knows, maybe you can make a new best friend to stick close to and be a pair with! Quality is always better than quantity, when it comes to friends whatever you do, you gotta change something! It's not you, it's them. Be confident! good luck!

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Take Risks. Do things beyond your boundaries. If you don't, you'll never know what you missed!

Sorry if my reply is a little late, but i know how you feel. I have experienced that too. Hmm, advice... hang in there! Eh... that was crappy advice. Sorry. I experience that because i am too shy to ask if i could come along, have you tried asking that? It could help. But i know it's hard, don't take pressure!

Koita kestää!

you should also try to reach out to your friends.