「另起爐灶」

(pos:動詞)
<explanation>
yue:放棄一啲既有嘅嘢，尤其係公司、機構、組織，自己由頭嚟過
eng:to withdraw from something already established, especially companies or other organisations, and set up another with a similar nature; literally 'to set up a separate stove'
<eg>
yue:佢喺佢爸爸間貿易公司幫手做咗五年之後，就另起爐灶，自己開咗間貿易公司做老闆。 (keoi5 hai2 keoi5 baa4 baa1 gaan1 mau6 jik6 gung1 si1 bong1 sau2 zou6 zo2 ng5 nin4 zi1 hau6, zau6 ling6 hei2 lou4 zou3, zi6 gei2 hoi1 zo2 gaan1 mau6 jik6 gung1 si1 zou6 lou5 baan2.)
eng:After working in his father's trade company for five years, he started a company of his own.