Being optimistic 101. Find possible positive things in all situation. I assume that this market dip is just a hard reset of the market's value where 'virus' or unworthy investors, mostly those who panic sell, forced to withdraw their account because of the dip. With this, all weak accounts will be perished and all remaining strong holders go on to victory. After it has been cleaned, we could now enjoy green fields on our wallet. 2019 will be great again for us crypto holders. Stay focused.
It's actually a correction that we've been witnessing for the past year and I think those panic sellers have sold all their coins. However, we are not out of the bear market and we might not see the market goes on full recovery this year as well, not to burst the bubble but don't put too high expectations so that you won't get disappointed at the end. Just take advantage of every opportunity to book profits. But if you're not comfortable, then don't force yourself.