Scammed 350m

new player here obviously to trusting aswell basically I have been watching someone play the game on YouTube for quite sometime and decided to sign up knowing what I wanted to to RP a shop keeper and do all the racing stuff anyways I brought 25 doner packs as time isn't something I have alot to invest in general so kind of wanted to speed run that phase anyways brought all the cars I wanted to get points to unlock what I needed to and was offered a great deal for xanexs and other items e dvds etc anyways long story short I accepted the trade not realising that it was only 10% of what should of been there leaving me around 350 m down my fault for being dumb but is there any way to recoup these losses or am I just gonna have to buy more packs might just quit tbh