so try something new (<.<) like making one on the moon (O.o) its possible to do you just have to relearn the mods is all IC 2 WAS great don't get me wrong i LOVED it however it isn't staying up to date and looks like it won't be updating any time soon.
yeh not by not being lazy (< .<) its the big dig - diamonds spawn everywhere even at and above sea level if you can't find diamonds in the big dig you aren't leaving your house.
thank you for your honesty - it is a challenge yes but that is part of the fun of minecraft. Every once in a while try osmething new, learn new mods and relearn to enjoy the game over again rather than getting bored building the same factories over and over running on solar power.