How do I move past the shame and the hurt?

It’s been over 2 years since me and my child’s mother split up. Coparenting has been a very depressing and confusing time for me. She broke up with me saying I wasn’t enough for her and that she didn’t see me as someone who could lead in the relationship or someone who was confident enough. I’m an introverted person and deal with depression so those 2 things might make me come off as not confident but I feel like I am confident as well as someone who can lead in a relationship. But a couple months ago she got into a new relationship and my jealousy took over and we got in a fight about it cause I said I needed space from her. She took it as cowardly and told me I’m not a man I’m a mommy coddled little bitch. Also told me I’m a loser who nickels and dimes our daughter cause I only give her c amount each week, whatever is within my budget for the week which isn’t much cause I’m struggling too. She had the nerve to call me a broke man child. Which idk how I’m a man child, I have a full time job, my own vehicle and house and no help from anyone else. She later gave me a half assed apologize probably just to alleviate herself of the guilt she get over saying all that stuff and hoping we can just go back to how our coparenting was. But I’m having a hard time moving past it all. I’ve been feeling inadequate as a man now after being told I wasn’t enough and that I’m not a man. The shame of her seeing me that way is eating me alive everyday and now find myself comparing myself to the new guy. Wondering why him and not me. She literally told me she would have to change everything about me for the relationship to work and that was just another stab to the heart. Like idk what this guy can offer her that she thinks I couldn’t and why she thinks we aren’t compatible. After 2 years I’m still very hurt and confused by everything she said to me. The way she blindsided me and discarded me so easily is also something I’m struggling to move past. She blocked me on social media shortly after she started seeing this guy. So now the only updates or pics I get of my daughter is anything she wants to share via text. But when we didn’t have eachother blocked she used to post pics and stuff of our daughter all the time. It’s hard enough only seeing my daughter 2 nights a week and being forced into a coparenting situation. But the disrespect and being almost completely cut off from her life is just a whole new level of hurt and frustration. I’m struggling and I can’t keep living like this or feeling this way. My relationships with everyone including family has been in shambles lately cause of my depression over all this. I just don’t know how to let it all go. I’ve tried meeting new people and they either end up ghosting me eventually or play games with me and it all seems like a waste of time…