The only formal training I've had is an evening class in soft furnishings that I decided to take many moons ago. I LOVED it! I could *see* the finished article in my mind and the various stages of how we were going to get there. I think it did help that we had an inspiring teacher too. That's always a plus point.
After that course, I made this Roman blind for our previous house. It hung in the bathroom and I added a cross-stitch border at the bottom to match the tiles.