我有咩途徑可以做註冊護士呢?

你可以報法國醫院開的登記護士，一邊做一邊學，畢業後再讀多一個註冊護士課程。
不過就一定無part time nurse course是可以做註冊護士唔好被人騙你讀
(你近期都有聽新聞副學士的註冊護士都唔可以註冊啦)

the only way that you can become a RN, is going back to University and study.
Depends on your budget, if you can afford, less trouble, you can go overseas to study in university, somehow.. they may review your transcript and redeem some credits, that will save your time.
if you only consider to stay in hk.. then, that will be much harder. They mostly expect that you have studied the biology, chemistry, maths, certainly you have to pass your HKCEE for Chinese and English.