Talk out of

Talk out of: convencer alguém a não fazer algo, persuadir alguém a desistir de algo

“ My uncle is a drug addict, and there's nothing I can say to talk him out of it. He says he's too old to stop now.”

“My family tried to talk me out of becoming a musician, but I wouldn't change my mind. I was determined to have a career in music.” (www.englishclub.com)