I know exactly how you feel Gem as I’ve been feeling the same lately.
What has helped kick start my passion is finding new people to share my knowledge with, see the passion and curiosity in their eyes, and remind me what I was like. Show them all the things I had to discover the hard way, so they can learn better and faster than I did.
I’ve also started dusting off my keyboard to write some blog posts. One was quite ranty (apparently), and the other I tried to be more informative. But it has got me into the motions of writing, getting me to think about things again.
I’ve also been asked to help run my local Meetup, so I tried to interact more in the last session, speaking with the different attendees, encouraging them to present in future sessions, keep coming back, etc. It’s also made me think what I can do to make the Meetup better, expanding into other events, different venues, better advertising, recording the sessions. So whilst not all about testing and improve my skills directly, it’s keeping me thinking about testing, and helping us all improve, which is something I enjoy as a tester.