If I look at your question, it will be very difficult for EThereum to be able to bounce back like last 2017, but for the current increase all this shows a positive thing because prices in 2017 will be repeated this year but note that Bitcoin prices continue to soar.
Ethereum had a huge correction in 2018 and could see it as the worst period of this coin. I think Ethereum will soon return to the most stable stage and let's wait for what will happen next at this coin because I believe this year everything will be different and we can still invest in ETH at safe price if you have long-term investment needs. Anyway, this is still the second coin ranked on CMC and we will still earn good profit if the market enters the uptrend stage.