Do i have ADHD? or what do i have?

ok basically im a sotra random person sometimes, i like to joke alot, i dont really know my true personality and i have to go through things a couple of times to really get it/ remember it but once i got it im good for a long time. i daydream a lot and i think about crazy things that branch off of other things, and im very curious and i dont know all of my feelings and my personality, like i react differently or my emotions are different then what i would think they would be, and i dont really hink things through normally but i do for goals on video games like runescape. im good at math but idk, i am confused on life and idk if its my hormones im 15 almost 16 btw, or if its because i had adhd as a child and i was never treated for it, i had no restrictions and i was realllly bad and i did everything i wanted and then i started to get disiplined and not i feel like i have to think everything through because i never did when i was little (preK-3rd or like 5th) and also when i was little i never remembered what i did when i did something bad, i would forget what i did when i got in trouble when it happend like 30 mins ago. idk if being disiplined affected me like this or not but when i try and think things through it gets reallly weird like as if i was a hippy and things branch off as another then i relise what im talking/thinking about and it seems really weird. idk if i have it or not but im hyper when im with my friends and not on my computer, like i like to jump on things/ off of things and have a lot of fun. but basically i always had a reallly big attention span for video games and they calm me down unless something bad happens over and over. i just wanna know if i have it and how can i get it treated if its the best option because its hard to think things through with hormones or just thinking things through period. :/ and i suck at thinking things through then doing them because it feels like its not the same, and i also feel lazy when im on my laptop but theres no1 to hang out with where i live and i like to have fun :/