It depends on your goals and approach. For some, the ultimate goal is for Bitcoin to reach 100k, in that case it's best for longtime investors to keep holding for now as analysts are predicting this bull run will see Bitcoin reaching the 100k/150k mark. For some other seasoned investors, the targets are even loftier, they want to HODL till it reaches 250k or more. If that's the strategy you want to keep, then I'd suggest you keep buying regardless of the price, but especially during the dips. DCA is smart, but long-term HODLers can benefit from even more aggressive buying. As for alts, definitely do your research and invest in the ones that are high potential and have solid base tech. Keep your portfolio diverse for minimum risk. When Bitcoin rises, the altcoin season will follow so it's all about betting on the right coins.