Many ways to get ETH. for example, you can join bounty campaign, trading, and mining.
Trading requires analysis that is deep enough to be able to read graphics, and mining need of mining tools/hardware and that's price very expensive and you must adept at maintaining hardware. my advice, as a beginner you can start by joining and participate in a bounty campaign and airdrop to get token and sell it to market. and you can convert it to be ETH. I think this is a way to get eth for free.