Probably your strategy is right, depending on when you started buying bitcoins and selling your alts. I just made a post about this as there is a bit more to it than that. Have a look if you like and make sure you get in to alts on time! In the meantime i upvoted you and will follow ;) https://steemit.com/bitcoin/@attalis/3-reasons-why-buying-bitcoins-now-from-your-alt-coins-is-a-losing-trade