The quickest way to feel dissatisfied is through comparison.
I have a friend who seem to get by in life so much easier than I do, and I hated her for years despite the fact that I also care for her. After doing some therapy, I realized how distorted my view on myself was especially while comparing myself to her and other people. Of course I will never amount to them, because I'm NOT them. But the other side of it is that THEY will also never amount to ME. That helped me pin-point what I have working for myself WITHOUT sliding in some comparisons from other people. It has helped, and it's still a work in progress. The one thing I try to do as much as I can is, when I catch myself doing the comparison thing, I stop and turn it around... acknowledge that I like that about the other person AND come up with something positive about myself as well. It's hard, but it's worth it once you see yourself feeling better about who you are
Hope you feel better!
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"I am a leaf on the wind, watch how I soar."