No. It's not your life forever. It's just your life now whilst you recover and grieve for your marriage.
I'm older than you but also ended my marriage. My ex seemed to move on straight away. Bought a house, got a GF and a new job. And I was still rocking and on the piss. Living in a shitty rental whilst I tried to buy again. Also with the guilt of what I'd done to my family and the thought always that I could have tried harder, stayed longer etc
My ex was a man child. Sure yours was too. Mine took drugs, refused to work, was abusive but charming to the world. And I wasn't happy. For years and years. But then it felt worse (like it does for you now) AND THEN IT GOT BETTER!!!! Which it will for you too.
You are a young spring chicken and have a wonderful family, an amazing job and sound comfortable. So you don't need a partner but one (the right one) would be nice.
Honestly I think it's just around the corner but it only happens when you wake up one day and think, if this is as good as it gets, I'm happy. Because being happy and content is attractive.
And now your ex isn't the last man you slept with so that is good too. Onwards. You are on that bridge to a new and better life with your integrity fully intact. you did the right thing.
By the way I remarried in May. Honestly it's night and day. You will see that too.
And try and ease off the wine a bit if you can. I did some guided walking and also a fitness holiday (no booze).
New year, new you, new life.
Much love to you OP.