Got broken up with, need advice on moving on

I had just gotten out of the psych ward & like a week later I got broken up with. I told him I needed him to treat me like how I’ve BEEN asking him to (he barely ever tried to change his ways) & that had been going on for the whole year & a half we were together. There was huge double standards in the relationship (meaning he could do things I couldn’t) & all the sudden when I mention I might not want kids (I’m 20 years old & he wanted them in the next 5 years) he literally dumped my ass lmao. Like I had told him over & over again I needed him to treat me kinder & as SOON as I mention something that I WANT & need, he gives up & leaves. I haven’t been single since 2022 so this is very weird to me. I just miss the past with him I guess. Any advice on moving on?