You are still young (i.e. less than 40 years), I have friends who came here in 2001 at age 35 when technology bubbles started to blow up. They lived a "miserable" life and had no hopes of what tomorrow would be. The life lasted for 3+ years and they even wanted to return back to China. But they survived, 10+ years later, they have big house + two cars with decent income and good reputation in their community.
Everyone has his/her own bad days sometime, but not forever so long as s/he strives to be better. It seems you have a caring husband and a loving daughter, and that's more important than anything else. After 10 years, when you look back, you will find what you have gained the dividend for your today's sacrifice and hard work.