Ketamine Problem: Was This Bad?!?!?

I dont do dugs anymore. However, whn i ws 14 and wen i was 14 i lookd like i was 10, my older frend, who i admired at the time, had me do ketamine a lot and smoke a lot of pot and stuff....ever since then, i feel different, paranoid, hallucinations sumtimes....im scaed as no one in my fam ha tht ....its been a year now wat do i do?