Buy BTC and Bitcoin only but not at 50/50, it is better to buy more on BTC 60% while 40% for ETH. Well, buying coins during the dips is not unusual, most investors do this and then sell at high. But this is not what I have planned after buying, I have to hold it for a while until the next ATH just comes. Patience can be tested as well but if we are truly committed to our plan, that seems possible.