"economy drive" is usually used by governments or companies to mean "a period of time in which they attempt to reduce how much they spend and save money" Whoever said the sentence you shared is extending the meaning of the term of their own individual situation. "I'm meant to be" = "I'm supposed to be" These resemble passive constructions, but because the active versions are very strange and unnatural, it's probably best to just think of them as set phrases. It is similar in meaning to "I am expected to be" which is a much clearer passive construction. But 'expected to be' implies that other people want him/her to be on an economic drive. Using meant/supposed could mean the same things, but it could also mean that the individual him/herself made the decision to go on an economic drive. Another example: "I'm meant to be on a diet to lose weight, but dad made a delicious cheesecake and I ate it all"

"Economy drive" is a figure of speech. The person only spends as much as one needs to survive. "I'm meant to be" means, you expect it from yourself. So, in other words, the sentence means "I'm trying to save as much as I can, by avoiding unnecessary expenses".

be meant to do 应做；照道理,照规矩应该做 mean to do 打算做…；有意做 economy drive节约运动 整句试翻译:因为我正参加节约运动，所以我努力少花点。