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normally, people would advise having some kind of "emergency" funds filled up before getting into investment.
the amount of this emergency would have to "also" depends on your easy of getting another job of similar pay, your ease of getting loan from family members for those just incase situations.....(like yr bike kena major repair)......  and other considerations.

btw,...you are looking into investment into high dividend stocks......found some articles about danger of high dividend stocks.....
Everyone loves dividends, but reaching for yield can have disastrous consequences.
http://www.fool.com/investing/general/2016...s-to-avoid.aspx

This Stock Has A High Yield Of 6%, But Are Its Dividends Safe?
https://www.fool.sg/2016/03/11/this-stock-h...dividends-safe/

just a note: there is always risks in investment...some are higher than others, and some may have changed over time.....

You can and should start investing with as little as RM3K per transaction, ideally, the fees would be most efficiently utilised with RM7K - RM8K transactions.

However, a majority of people just keep on procrastinating and end up not invsting until very late in life. I suggest you start right away at RM3K and reinvest those dividends. I'm a dividend lover myself but you gota do your homework as well. Don't just chase high yield stocks without knowing the company first.

Start building your passive income (dividends) now. You're very young and with time and the magic of compounding on your side, you'll be able to be financially free faster than most people.