How much do you settle for an injury that happen at work?

I failed at work and broke my foot 2 weeks before my wedding,(Feb.1,2011) I was out for 5 weeks the first time with a boot cast, was able to return back to work under limitation stationary work. went through physical theapy, nothing helped, Sept.12th I had surgery to remove the chipped bone, that bone had a tendon attached to it, so they had to reattach it to another bone, was in a non walking cast for three weeks using a knee walker, then put in another cast for 4 weeks, returned to work on Nov. 28th 2011, I continue physical theapy, my foot is still bothering me, my doctor has dismissed me and said to just come when needed, thats all he could do. Workers comp wanted to close out the case and didn't at first want to settle with me until I mention getting advise from a lawyer. now they want me to name a settlement. I do not know what to do and how much.