Oh please, don't get discouraged! You are just having 'information overload', LOL.
Take time to breathe and relax.
If you only want to do squares, then do it... 4 patches, 9 patches, or even single blocks in a simple quilt, maybe 'I spy' quilt. Very easy, no fuss no muss.
Now, if you want to do a bunch of 4 patches, scrappy or otherwise, you can try Billie Lauder's 'Ultimate scrappy 4 patch' tecnique ... ala video tutorial ...
http://www.quilterstv.com/channel/video/0?video=1415
I love the quilts in her video and I've been cutting my scraps into 5" sqs for this technique or even the disappearing 9 patch.
I hope I'm not 'overloading' you again!
Just have FUN!