It was a long time ago :) But as far as I remember, I had to wait two months to get the right amount of capacity :) Ruby upgrades can help make it faster :)
yeah boris, that makes sense. I figured capacity cards sped it up by a lot for me, since helium yield increased a lot even if you progress one or two levels. for future readers, notice you'll have to reach a specific level before you can buy the upgrade to drill yellow crystal...better stock up on helium :)