A piece of advice I'll always remember is that people are usually too busy worrying about how other people are going to judge them to really be judging you. Odds are he's some kind of attention whore who is super insecure. Think about who's at the top of our sport right now-Tanner, Henrik, Ahmet, Hornbeck, Wallnutz, and you know they don't spend time worrying about what others think of them or how approved their tricks will be by the people watching them.
There will always be critics in life. Just let their criticism be a positive experience for you. I got a lot of shit during soccer, but once you stop caring, the sport becomes way more fun than when you worry what kids say. Turn off negativity, and use any criticism you get solely for growth.
If you can't do this, just try buddy. This is honestly the biggest part of growing up and something that I really wish I'd known how to do earlier. It took me from an insecure freshman to where I am today. Once you start not caring, skiing will become a different sport for you, plus you'll find a lot more joy in everything else: other sports, music, clubs, social life.
I'd also recommend taking some time off from ns. The community can be hypercompetitive, and it's hard to feel very good about your skiing when the best in the world are putting out banger edits at a fiery rate, and when some mean person with a keyboard gets the screen shield and a downvote arrow. There's no way I'll ever be able to match a lot of the talent on here, just accept it, and enjoy what you do. Instead of worrying about how much smaller your jump is than that one at windells, just try to be inspired by those guys. Odds are you're better than a solid 90% of skiers alive. Odds are you're getting solid air for any sport-mtb, skating, wakeboarding, and skiing.
^that should help ease your mind from the competitive side. I've found big mountain skiing to be more fun/challenging/relaxed/enjoyable than park skiing as of late, if you've considered it!