Need help with build (2hander maruader)

Im up to act 1 cruel at lvl 37 and everything is starting to destroy me easily.
This is my current skill tree, I dont think I have enough life nodes for the build I have.

http://www.pathofexile.com/passive-skill-tree/AAAAAgEAAechAiFVJyAotSkuKvYyCTboOQ46Uj38QKBVqVW1VgRYY2CIYVJ7jHy4hmCHKYwGl7SezZ_LpKynMKy6reS53cEExtjcPd-_6wnvDu9O8i_3vvyJ

I'm currently using the skills, heavy strike with added fire dmg, sweep with life gain on hit and leap slam. I am also using the anger aura.

My life at the moment is 729 and I have 309 strength, 65 dex, and 41 int.

Could anyone please give some suggestions on how to improve my build and skill tree.
Thanks.

bump