@Appleblossom
There are lots of things you can do with metaphor.
I was into tarot for a long time and enjoyed it from a metaphoric and archetype perspective. I've always enjoyed analysing my dreams, and recognising the patterns in the stories that have great meaning to me.
I first got exposed to the uses of therapeutic metaphor when I was doing NLP, and the thought that you could use a story to help heal someone or to make changes in the way they think was fascinating.
These days I am very interested in a process called Clean Language (check out clean.co.uk) which is a way of exploring the metaphors that underpin our experiences and beliefs in a very non-interfering way. There's probably a better word for it, but essentially means that the facilitator influnces as little as possible while helping the person explore the metaphor.
I have found this pretty powerful for self work, especially as due to my background with NLP I am pretty good at 'Un-NLPing' myself. Essentially the more nifty tricks your conscious mind learns the better your unconscious mind gets at them too. It can end up as a stalemate. With the metaphor work I am much less resistant to it, because it is just expolaration and learning, and so I don't tend to 'undo' the work.
There's an introductory course about Anxiety on Udemy by Judy Rees (a world leader in Clean Language) which is worth doing if you get a coupon which has a very brief taste of Clean Langauage/Metaphor work in it. She also does some more advanced courses on Udemy, but I haven't taken those yet - though I did get to train with her in person when she came to Melbourne last year. She also has loads of free videos on her site http://learncleanlanguage.com/ if you are interested in checkig it out.
Quite apart from how effective I find it, I also find it deeply interesting and very enoyable stuff to play with and explore - and as I would lieto get itno art more, it has the potential for excellent creative idea fodder.
Most recently I have been interested in Andy Austin'smetaphors of movement. Again lots of resources online.