Its a well know fact that you can’t just plonk on a kimono or even yukata. It is an art and skill which needs patience and years of practise. I learnt my kitsuke skill from books, DVD’s and using general guides from the Immortal Geisha community.
However, watching someone else is the best way to learn. You can see how to wear a yukata here:
I still dress to this video from time to time even after three years as it never hurts to refresh your technique.
Here is a formal kuro-tomesode kitsuke video which I particularly like, which shows silk kimono dressing:
It takes a while to learn kitsuke, and you will keep learning for many years especially as there are hundreds of different obi arrangements to try!