Same. I'm just horribly bad at self-marketing and generally have zero interest in getting attention. I used to think that as long as I was doing good work people would notice, and sometimes if you're lucky that can happen, but there are lots of situations where you're doing yourself a major disservice if you're not selling yourself and your accomplishments. You just shouldn't depend on any one else to advocate for you.
That doesn't mean it's easy though. I still hate it and have to make a conscious effort to market myself.