Depuis son adolescence, elle a toujours eu des complexes concernant son apparence physique.
Since her teenage years, she has always had insecurities about her physical appearance.

Il a des complexes par rapport à ses compétences académiques, mais en réalité, il est très talentueux.
He has insecurities about his academic abilities, but in reality, he is very talented.

Malgré son succès professionnel, elle a toujours eu des complexes quant à sa valeur personnelle.
Despite her professional success, she has always had insecurities about her self-worth.

Il a des complexes par rapport à sa taille, mais il ne devrait pas se soucier de ce que les autres pensent.
He has insecurities about his height, but he shouldn’t worry about what others think.

Elle a des complexes à propos de sa voix, mais les autres la trouvent magnifique lorsqu’elle chante.
She has insecurities about her voice, but others find it beautiful when she sings.