I hope that you had already bought your bitcoin during the dip as the price where now climb to $10kUSD. Focus first on bitcoin as this coins is known as good coins as compared to altcoins. If you then had knowledge you can diversify your investments in altcoins to have a balance investment as we can't predict what coins will give you profits. Also, some altcoins can give you 10x, 50x profits. You just need to do your own research before investing in altcoins.