I am a fresh graduate who has never invested before, should I start investing now?

Hello Huay Chee! Congrats on your graduation :) Before you start investing, one should have at least minimum 6 months worth of emergency funds. If you spend 1k per month, then at least 6k or more should be sitting in your bank account. Once that is done, get yourself protected by prioritising the insurance plans with a trusted financial advisor. When everything is covered, any excess cash can be put into an investment product that would help you to meet your financial objectives. Yes, seedly has many wonderful investment resources and you can take your time to understand the investment basic.

My advice is that its importance to increase your financial knowledge first and understanding your personal risk appetite! This would require some effort put into research and self-reflection. Take the time as you are still young and in no rush. 

Some questions: "Am I investing in hopes of realising it all in the future to fund my child's future education/buy a house?" or "Do I want it to be an alternative source of annual income that can come in terms of dividend?" 

Important thing now is do not rush into buying popular stocks now just because they're cheap. You need the financial knowledge first to pick good stocks and evaluate them yourself. The notion of what goes down will come up worked in the last recession but this one seems to be an unpredictable battle to be honest.

I would recommend investing 50% in a market portfolio like S&P500 ETF as it historically yields 10% return and has a general upward trend. Another 50% can be other individual stocks that you like and see a potential of 10% return. Diversification is always important. There is no reward for bearing unnecessary risks.