Congrats on 63 days. In some ways 63 days can feel like a lifetime, and in other ways it's just getting started. Recovery is a continuous long-term process, so don't get discouraged. Not only can you get your old spark back, if you do the sobriety work you can grow by leaps and bounds beyond where you were at before everything went off the rails.
I'm nearing the 6 month mark and can relate to feeling exactly like you do. I lost my entire 30's in a fog of wasted spirit and lost memories. I can't pinpoint an exact moment when it started changing because it's been slow, continuous progress; but it wasn't until sometime in the 4th or 5th month that I felt like I started hitting my stride. Now I can hardly believe the difference between how I feel now and how I felt back then, and I have a feeling that there's so much more ground to cover.
Keep at it - I am confident you can do this.