ITUNES Help

[howie789]

I'm not the most technical person in the world- so please bare with me. I have an Ipod Touch 5 which I love, and I want to fill it up with music- but I can't figure this **** out. I downloaded the most current version of Itunes. All I want to do is drop and drag my files into whatever f ***ing page in ITUNES - and then "sync" (whatever that means) it into my IPOD- and THATS IT. WTF. I'm totally lost- my files don't drag in. There are so many different folders and options to go into. Oh, and then I somehow downloaded a 500 song 80's file last week- now that I dropped and dragged, and somehow it worked. Today, I went back into Itunes to delete some old videos- then- I clicked on something- and I LOST all 500 songs. WTF did I do? Why can't I drop and drag, and be done with it?? Is there a laymen's guide to dowloading songs - and into what file in ITUNES?. Can someone walk me through the basics? This is such BS. Why cant they make this **** easy. I'm just frustrated.