I think clothes are much easier than quilts. More room to fudge. Start with a simple pattern and cheapie material. The fewer pieces the easier.
You make beautiful quilting projects, so I'm sure you can make clothes.
Polly's comment about Vogue patterns is right on target. Vogue patterns are difficult. You may need to work up to them.
If your Wal-mart still has fabric, check out the cheapie patterns. They have many for less than $3.