You can get the packets of make-up removal wipes, but you may need to make sure it's one that says it'll remove waterproof mascara if that's what you'll be using.
In regards to putting mascara on, possibly Youtube would help here. But I do have some tips on it; you'll be holding the brush horizontally (or mostly horizontally, at least) and brushing it onto your lashes in a motion from the ends attached to your eyelids outwards. (Hard to describe, and not actually as easy as it sounds, so this is where Youtube may help). It's good to keep your make-up removal wipes on hand in case of mistakes (I used to get mascara all around my eyes and even on my nose at first!).
One other tip I have is that you can get a better, fuller-looking lash (usually) by blinking your lashes onto the brush after applying the first coat. So, you don't want to have the brush too close to your eye when you do this (I've literally blinked the brush into my eye before and mascara is painful if it actually gets into your eyes), but just close enough that when you blink, your lashes brush against the mascara brush. It's best to start off with the brush a little further from your eye than you think it needs to be, and if when you blink your lashes don't touch it, then move it a little closer. I don't know if I explained that very well, but that's how I do it.
