Perfectson
Banned
Sorry myetherwallet , typo about to get people robbed
Yes you need to setup a wallet on myetherwallet, make sure you can restore it from your saved file, practice sending and receiving a small amount of ETH as well. As far as buying ETH right now, its at an all time high today so you have to make the decision to buy now or later or wait and flip something you're holding
I wouldn't test too often since there are transaction fees involved with sending. Test once then check and move everything in bulk, unless you really not comfortable