Crypto is unpredictable, you invested in this ESH for a reason, I think you need patience since development is still ongoing, you might end up been surprised what the future holds for this project, non active team is another thing entirely but that's not the case here.
Im not an expert when it comes to investment, but i have a background knowledge since we have Investment subject way back.. before you decided to invest on something, make sure that you're doing research and background investigation . also I advise that we should not put all of our money on 1 basket. One of the most important ways to lessen the risks of investing is to diversify your investments.
And don't forget to use the money you can afford because when you go all-in of your money, and the investment suddenly going down, you will be hard to get your money and even you will not make any profit. We can diversify our investment, but you need to research to find the coin and don't let other people let you decide without research. You don't need to listen to them because they are not always right to give the suggestion, so better you research by yourself.