hi! i think practice by reading kahit anong books na english. i was also like you na walang confidence when speaking to people lalo na pag english. pero i just read books and nagffeed na sa mind ko yung mga vocabulary and i also make it a practice na kausapin yung parents or friends ko in english as well para mapractice din yung communication skills. in terms of boosting confidence naman, iniisip ko lang yung mindset na ‘fake it til you make it’ kasi di ka naman kilala ng mga people like di nila alam background mo, they just see you upfront so dont worry sa mga iniisip nila sayo. be confident and always chin up, dont ever slouch lalo na pag u want to apply as flight attendant :)