I don't even consider myself a very good developer but I work hard, I have discipline and commitment, and I focus on getting the work done. This made me 10x eng

I don't even consider myself a very good developer but I work hard, I have discipline and commitment, and I focus on getting the work done. This made me 10x engineer in most of the teams I worked. And for a few years I had it well measured because I was working with the same app and I was estimating all the tasks for me and the others with high precision to my own performance. The manager understood that other team members wouldn't follow my pace since they were less familiar with the app, and it was OK for him to estimate 2x or 3x the time when planning. But at the end it showed that I was average 8x faster (and with better quality) which was not justified since they were also senior even they knew the app a bit less. The worst part is that I was earning much less than them due to location... but at least I could justify a request for a 15% raise which was given with no hesitation.