It took me ages to enjoy doing things again. But then I hadn't even enjoyed stuff drunk anymore. Now at 1 year and 9 months I still am trying to reconnect with my true self, finding out what I actually enjoy. These things take time. It's like getting to know yourself all over again.
In my case it was also depression that kept me from enjoying things and made everything feel so bland and I didn't want to do anything, nothing was enjoyable. Maybe if this feeling does linger for you, it would be good to talk to a doctor or therapist about it. When getting sober, many people discover that they suffer from depression. It's not uncommon.