Im really trying

I'm working on myself post break up. I'm starting a new job (so scared) and starting a law degree. I haven't said anything horrible to myself in a while (despite probably having gained weight from Christmas 😂) and I'm trying to build myself up again and feel okay about myself and know my self worth. But what if I don't find anyone else? I loved my ex so much but I'm worried nobody else will find me attractive or interesting like he did. Like I may not be skinny or super model pretty but people say I'm friendly and my ex used to say how lovely I was and I was kind to him and apparently I made him laugh. But what if nobody else thinks that? There's always gonna be someone better out there and I know that but what if nobody wants to know me or settle for me? I know it sounds stupid but I'm in a low place post break up