The train is still moving up. Don't worry
Trying to jump on the running train is the worst you can do. Usually you become the bag holder and nobody wants to buy it back from you at the price you paid. It is not worth to chase the price, there are many different opportunities around each corner.
Now is this what people said about bitcoin back when it was $5? You just can't predict these things sometimes and it may indeed not be too late to jump on the bandwagon.
This is exactly what I feel, maybe Ethereum is nothing but the latest in a long string of pump and dump alts, but you just never know. BTC has tons of history you can go back and read many forum posts here and elsewhere. In a lot of cases, you could read an old post on BTC and simply substitute ETH for BTC and think you are reading recent comments. There were a ton of gloom and doomers, "get out when you can" types, as well as fanciful "Bitcoin will be 1 million dollars" posts, just like there are now with Ethereum.