Wow, I'm glad I'm not alone in slow leveling ... =)
And to Spirit's question, I solo almost 90% of my time. I remember mainly partying for either KQs, quests, or helping other people.
I want to level up quicker to get to all my friends' and guildies' levels, I guess that's mainly my cause of leveling up faster.
I don't try to find a party, because I know I'll make friends with them and watch them level up huge amounts in the next level. And then I would have to find another party, make new friends, watch them level up from a distance, rinse and repeat.
I started out as higher leveled than most of the people I've met, and now I have to watch them go grind with their friends in AEW. I feel like I can never keep helping a friend and keep talking to them because of our distance through levels.