Are you sleep training your baby?

KT
This 4 month sleep regression is KILLING ME. I haven't gotten more than a 1-2 hour stretch of sleep in 3 weeks. I'm spiraling downward and I'm not as good of a mom, wife, or friend because of it. 
Has anyone here had any success with sleep training? I'm thinking of trying the Ferber method. Please no judgment, I know something's got to change for the good of my family! 
Any advice is appreciated! Sincerely, a very sleep deprived mama. 
(Also, a pic of the sleep deprivation culprit)

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