Selma Blair is coming clean about some of her most difficult moments in life. In a new interview, the actress touched on her past struggles with alcohol, explaining there were multiple reasons as to why she got sober in 2016. “I wouldn’t have been able to be diagnosed with MS unless I was sober. I wouldn’t be a good mom unless I was sober,” she spilled to a magazine. “I self-medicated.” Blair, 52, experienced the lowest point of her relationship with alcohol when she was kicked off of a 2016 flight for being disruptive. “I had too much to drink in Mexico. I was so messed up and dehydrated and …