Hello so im 18 and i want to talk to you guys about myself.

so its super easy for me to hate/not care someone, or be irritated with someone. And i can be distant with peıple out of nowhere/ no reason. Just because i dont want to be close with them at that moment. And no reason behind it. Sometimes i can be very hurtful ( wordwise) , dont like people,i can be " just leave me alone" type, i can be very veryy pessimist, cant stand people( even my family) depressed. And sometimes ( actually often) im the opposite : Soo active, joyful, friendly, dont want to hurt or offend people. I mean is everyone like this? And i dont know if this is a problem because the " depressed me" isnt that severe. Sometimes it is but sometimes its not. Any ideas or any questions? Thank you