how to get a book published!

For years people have told me that I should write a book about all that I have ezperienced in life and how I have overcome so much grief and pain. When I hit goal my husband suggested that we renew our vows. Our 4 year old has just finished chemo therapy and is happy, time to close the doors of the past like losing my husband and focusing on the future. Now I would like to do whatso many have suggested in the past. Write a book about my life. I just don't know how to find an agent. Does anyone have any ideas? Thank you Kim

try google.com