it's a matter of mindset
if you're constantly looking at your work versus everyone else's and continually saying what you make is bad then that becomes ingrained in you head making it even harder to view what you make in a positive light. rather than getting caught up in comparing to others you'll do better to compare with just yourself from past times and now. Seeing how you improve as you practice or finding spots you could or may want to improve
That's like you have to remember everyone is on a different path so what each person individually considers their "worst" will be different based on their personal perspective which is another reason why comparing to others can sometimes kill motivation so you've got to find a better way to spin it
So rather than going "oh that person's work is way better than mine i stink" try and see it as "i really like how this person did ___ i wonder how i can implement that in my own art" that way it gets you analyzing and practicing. I and I'm sure lots of other artists do it all the time looking at how folks do lineart or lineless, how they color, shading techniques or how they stylize something. It's how we learn and grow that why some of us go our "worst" is stuff we made as kids but it's less hating on our younger selves coz i can't see doing that but pointing out where we started and how we growing by way of continued practice
if anything all that's why i haven't really deleted some of my first comics/series on here from 2015/2016 or traditional art i've still got from as early as 2010 coz i like looking back on where i started and seeing how my arts changed over time. Heck even when i look at my own art from 2019/2020 versus now i can see certain differences in my work. that's why a big thing with learning and practicing is learning to enjoy the process even if something you make looks "bad"