How to move forward ?

Hey yall 👋🏽 I would LOVE the advice of others who’ve gone through similar things.

Growing up catholic, I was taught that I should save myself until marriage. My husband was my first real boyfriend. I dated, but never had anything serious going on. So, once we got married he took my virginity. The following years were extremely tumultuous for us. Despite our hardships, we had 3 children together. Currently, my husband is so out of touch! He spends all his time in our basement, his man cave. I mean an excessive amount of time. He works from home and I stay home with our youngest baby who’s 18 months. So from 7-5 he’s working in the basement and then after he clocks out he spends all of 15-20 minutes upstairs with me and the children before he retreats back downstairs. This has been going on for some time now. He’s even started sleeping in the basement and won’t come to bed. I left him, and took the children a month ago to stay with my grandmother. I begged him to change over and over before it got to this point. I failed to mention he started drinking heavily and smoking. When we got married we said we were going to try and live a life that honored God. So him doing these things were a shock and very displeasing.

We separated for a while once before and it resulted with him stepping out on me, and while it’s not excusable, I did serve him divorce papers. He claims he only did it because he thought the marriage was over. I just feel like I threw my life away. I thought I did everything right waiting until marriage and letting my husband be my first. Now I have 3 kids, no job, and nothing to show for myself. All because I trusted the wrong man to love and take care of me like he promised. I want to move forward but even thinking long term about the possibility of getting married again…who’s gonna be jumping to be with the lady who has 3 kids? I don’t know how to even process this experience anymore. How do I get begin to move forward 😞