I have been where you are. Keep going forward. It sucks. It hurts. Keep going forward. Rest when you need to. Cry when you need to. Make the dinner you want to have. Or eat Doritos and Peanut M&Ms if you want to. Or order delivery. Eat waffles in the bathtub while you cry. Just keep going forward. Journal, exercise and keep going.
My (50f) 28 year marriage ended just over a year ago because I would not accept his (50M) betrayal. I am still figuring out this independent life I have. I am still figuring out what family looks like now with my 29 year old daughter. You can too. I wasn't sure the pain would ever lessen... it did. Yours will too. Sending you strength and good thoughts. Feel your feels. The good and the bad.
I found this book to be helpful. Maybe you will too.
https://www.amazon.com/gp/product/B01BEGV5AM/ref=ppx_yo_dt_b_d_asin_title_o09?ie=UTF8&psc=1