I am having flashbacks permenently, what can i do to threat them?

hey, i have dont shrooms once, and it was a bad trip. i got alot of them (i think thats why), and now when ever i smoke weed i get flashbacks, it is the exact same as if i were on shrooms. i waited a little bit before trying a small amount of weed again (like 2 months since i did shrooms, and 3 weeks since my first flashback). but yesterday when i was with some of my friends, they were smoking weed, and the dumbass of myself decided to try it again. i only did 2 hits (dank). and within 3 mins i felt the effects of shrooms. the effexts were very strong, and i guess you could call it a bad trip. the trip started at 5:00, and ended at about 8:30. when i thought i was fine, and good to drive home, i did. then they hit me in the car when i was driving (about 5 mins from my house) it wasing a strong effect, but mild. every texture feels different, very different! and these effects havent stoped. they are still going on now. it seems that just every texture of an object that touches my hands/arms feels REALLY fucked up, and it is quite annoying and scary. i sometimes fell like im watching myself through a movie kinda too, kinda like my point of vision is fucked up (this is the worst). i am scared how long these flashbacks will last. i am 16 years old, and i would do anything to get back to normal. if that means telling my parents and seeking help for what i have done, i will do that. is there anything i can do to get these away? or possibly how long they will last?
thanks, please help me