Just takes practice, everyone's gotta start somewhere and with enough time you'll find yourself getting further and further through cards. With freelance active right now it's a good opportunity to just get a hang of the game mode and how people tend to play and once you're ready head into lfg and get a team together

It is DEFINITELY not for the faint of heart, that's for sure. Trials Labs and Trials Freelance tend to be the only times i'd consider playing, if only because the loot just isn't worth the headache the game mode can cause.