pfsense firewall cannot access wan

Hello,

I have installed latest version of pfsense i have 3 NIC on the pc,

My ip in the the firewall are

LAN : 192.168.2.0/24

WAN1 : 192.168.3.0/24

WAN2 : 192.168.1.0/24

From the Menu of pfsense if i ping a site in both wan the reply normally,

My problem is that i can't still make my LAN access the internet for one of the both wan,

My idea is to use both wan as load balancing,

Can someone help to solve my issue and at least make my lan access internet???

I tried alot of things without any result.Please HELP!!!!

Regads,

M.