Much wisdom here steemboss man! so so true. I have plenty of times had this post envy you speak of.. especially when I look at people I follow and have become friends with on here and I see that although we joined at the same time, they have twice the followers I do. But then I see they have posted 4 times as much as I have ..
Sometimes its just down to how much time you can dedicate to the platform and how you are using that time.
gotta stay positive!