laynak

I had that predicament with painting years ago and simply stopped and changed directions with my hobby focus. I began playing the piano 'again'--which I'd taken lessons for years as a kid. When I tired of that, I'd put time into writing, photography, desktop publishing, gardening, or design interests. When I went through any hobby for awhile, I'd simply rotate to another one or back to the first. Explained my interests as 'good at many things, master at none'. But, I always loved the interest while it kept my interest. Only since retiring did I even learn to sew in any way. Never, ever thought I'd start quilting (or sewing). Quilting has held my interest 100% for 8 years now and shows no signs of 'letting up'. Actually, my writing hand hurts when I write or draw so quilting by machine is a great alternative to keep me creative.
Don't feel that you are 'forced' to keep an interest going because it's 'there' in supplies and money! The supplies remain to be used when you regain your inspiration and the money's been well spent and can be a huge savings when you return to your interest in a year or two. Prices of fabric only go up!
If and when you truly 'give up' an interest, the donation or contribution of supplies to good causes or good friends will be a wonderful gift for them to carry on.