This is how illiquid markets work. The best strategy for small fish in small markets is to build and hold. If you try to "trade" a cryptocurrency, with how illiquid they are, you're going to get burned. Once hedge funds and deep-pocketed investors got interested in cryptos, it was the end of trading for anyone who's not a millionaire. So, I'd recommend that you determine a firm entry and exit price over the long-term and stick with a buy and hold strategy. Otherwise, you're going to keep getting frustrated, especially if Ethereum's network fails to scale, which it probably will.