If you have any alts which you didn't sell in last high, now it is better wait for rising Bitcoin till $ 7700 - 7800 and sell them there. But the price may not overcome the resistance at the level of 7000. Then it will be necessary to sell all the altcoins, as the Bitcoin price may drop to 4500.
Keep holding and buying cost you a lot of money... Won't be good if you have a limited amount of bankroll. Just watch and learn... Sometimes targeting the dip end you up with a huge loss and you can't afford that. Have no sufficient bankroll? Better to hold and waiting, but when you have large amount that's your chance to make money.