help with build?

I'm having a hard time with my marauder now, seems to die very easy in cruel and not doing enough damage in normal in act 3... not sure if weapon/armor or this build. Is there any saving this build or should I just reroll?


edit: I'm an idiot forgot to link
http://www.pathofexile.com/passive-skill-tree/AAAAAgEAAecZLiECJ-0pLjAZMfs26DpSPfxXDVhjcD5yqXuMfLh82YwGkHSezaC0pKynMKyqud3G2NIh1I_fv-RR567vDvIv9yv7qg==