I think Nobody can answer your question because especially last month there are lots of speculations. Analyze, understand and make you choice yourself.
I can maybe explain my strategy. If i like a coin very much and believe in it then i invest not all of money. For example lets assume i have 100$. I would only invest 50$ and wait with another 50$ if it goes down and buy from dip.If it goes up you wouldn't miss the oppurtunity.

But at the end... Its your decision. Make your decision on your own...