Too much

If i have smoke too much at once of some "Super Ganja" and wayy to much for me cause i can't handle alot of weed and I went into shock and my heart was pounding like madness and i got scared and paranoied because i didnt want to be high but i knew i had to wait until it weared off like being stuck in a state of mind and wondering constantly if it would wear of or not if i would be high forever and thoughts like that and i've been feeling fkn weird for like 2 mounths afterwards! And i'm terrified that i've caused some permanent damage to my brain or something i feel like i have depersonalization or some disorder, i have to know cause i dont know how longer i can hold on like this :-(