i tried weed and i'm feeling weird for 2 days now.

hello everyone!

If any of you has some experience with weed maybe someone could help me?

here's the story(im 14 years old and from holland:-P ):
i was on a vacation(4 days) with a friend and he smokes alot. i was a beginning smoker and he brought 20 euros(10 joints-ish) in weed so we smoked that in 4 days and that was fun and all but then when we came back we still had like 2 days and we did another 5-6 with a few other guys
so in total like 7-8 joints for me alone in like 4-5 days and i noticed that the day after that i had problems concentrating on stuff so i asked my friend and he said it wasn't normal and not possible because i slept and then you cant be stoned. but its now 2 days later and i still feel weird(= like when someone talks to me i cant really understand what he/she says because i get distracted by like a door or something lol) :-(.