Some people think the bottom is near and some people think it will crash more. So, decide for yourself. If you cant, then you might as well do a coin flip rather than asking for opinions to be honest. No one knows where the markets will go.
Also, how are you sure with ETH but not with BTC? They pretty much rise and drop together lol.
So, In my suggestion it is never to late to Invest in Bitcoin and other Cryptocurrencies because the Future of Blockchain based cryptocurrencies is very bright. And there is a prediction by 2025 the price of Bitcoin cross $20,000.