The high opportunity of investment is missed last weeks but you can analyze charts and understand Bitcoins prices this days before investing again.
You maybe missed it but the price will not stop here, it could rise not that this trigger a new bull run.
Maybe if we want bigger profit and you want to sell it right away, you should buy during the dip, but we cannot predict the real market movement, but at least it's still not late to buy and take some profit. I have a feeling BTC will rise over $6,000 and we are just in $5,000 now.