I think this is normal. You can now start focusing on you!!! If you have not started Al-Anon, now may be a great time to do so.
It's really hard - I poured all my time, energy, thinking into my husband and his drinking and taking care of the house, etc. My husband still drinks - but I have joined Al-Anon. It has worked miracles so far - on my thoughts - self esteem - finding myself and what I like . . . and I really like the people I have met. I don't feel so alone.
Hope this helps - it will get better. Good luck to you.