Still, trust ethereum no matter how embarrasing it's price is. We cannot say that the performance of ethereum will no longer experienced some downfall. Afterall, eth is still part of an altcoin cryptocurrency. So trust on him no matter what.
There is a lot to still trust in a project as long as it has a real life usage and the issue most of the time with people is that they tend not to understand the part where market can generally be bound to be bearish and there is nothing anyone can do about it. However, bearish is not always the best time to join in the bearish sentiments but always the best time to look forward to accumulating for the long run which is what certainly a lot of people tend to not realize but prefer joining FOMO by default.
In my opinion, sometimes the prices and the quality of the projects go in different ways. I never doubt the value of ETH, nevertheless, the price is depended on many elements. If you trust in the value of something, you should hold it.
You must doubt the value of ETH as it is having unlimited supply and arrived here with lots of pre-mined coins. I am not sure about the value of ETH in both short term and long term. Moreover, in my view it is just a gambling. It may have good future if ICO platform will do good.