I have only played 2 games of malifaux so I cant comment on the crews but what I can say is dont give up.
look on each battle as a learning curve, play to the end, learn as you go and try next time to beatyour opponent using differnt tactics or models.
just giving up because things arent going your way is not good, maybe your opponent did well, maybe he got lucky, maybe you were unlucky. but just remember its a game, 2 or more people just playing a game.
take some advise from the guys on here, adjust your crew, ask for a rematch and play it through. good luck