I work full time too - 39 hours over 5 days. I also volunteer at my local stables all day on Sundays. I don't get as much time to sew as I would like, but my partner and I both share the housework & cooking, so that's not too bad (I'm definitely not a perfectionist when it comes to home keeping - clean enough is fine for me).
I try to squeeze in a couple of hours on weekday evenings 2-3 times a week. On Saturdays, I try to get in either some handsewing or cross stitching.