Lupita Nyong’o spent years battling with the way she speaks. The 41-year-old – whose breakout role was playing abused plantation worker Patsey in Sir Steve McQueen’s plantation-era ‘12 Years a Slave’ film – was born in Mexico and raised mainly in Nairobi, Kenya, with the actress living in the US for the last 20 years. Opening up about how she has always had a “complicated relationship” with her voice, she said on the first episode of her new podcast ‘Mind Your Own’: “In order to create this podcast, I had to get very comfortable with my voice. “I made this pact with myself that I would learn h…