How did you become comfortable being alone?

Hi all,

I’m 30 and think I am burnt out on dating. I’m a serial monogamist with a history of several longterm relationships (ranging 1.5-5 years) along with lots of dating in between. The LTRs ended because none of them wanted to progress with me to engagement and marriage. In my 20s I would easily start over and start dating quickly after, but now that my most recent relationship ended I’m really starting to think about who I am outside of relationships/dating. I love having a companion and I haven’t spent much time being by myself. I am well-educated, moderately attractive, and kinda funny sometimes. I have all the means to take care of myself. I’m proud of who I am and what I offer to the world, but I don’t feel fulfilled by myself. I previously did therapy and am planning to start again. I’ve decided to really take time to be alone to work on things. Has anyone else experienced the same? And what did you do to help build comfort?

Thanks! :)