smoked weed 2 weeks ago still feel bad inside...

so  its october 17th now i havnt smoked for mabey 2 weeks about... but the last time i smoked we smoked 2 blunts one right after the other and i dont know what been wrong with me ever since i thought sleeping would help it get away but when i woke up for school the next day i still felt very woozy my brain felt very slow and my vision feels as if i cant focus .. Once i got in class i had to read and i kept reading a sentence and forgetting what i read and this has been going on for a while already ever since the last time i smoked.. im scared i dont know what to do  people dont understand they tell me im just paranoid or something but i know im not  i feel very diffrent and zoned out now then how i used to act i used to be very aware of everything  and talkative and now when i have a convo with someone i feel as if i dont even want to talk to them ... oh and i also feel very sleepy always and my eyes feel heavy and tired can someone please tell me why i feel this way and what i can do about it ill really appreciate it