Olivia Culpo believes happiness is an “inside job”. The 31-year-old model has undergone various cosmetic procedures over the years – but Olivia feels that happiness ultimately comes from within. Olivia – who has previously used Botox and fillers – said on ‘Get Ready With Me’: “Everybody’s always interested in talking about, what fillers do you do, what Botox do you do? All of these things, blah blah blah … I, for the record, have never had plastic surgery.” Olivia insisted that she’s never had any work done to her jaw, even though it’s “more sunken” than it previously was. And although the b…