Appreciate yourself just the way you are. Don't beat yourself up trying to change things that are beyond your control just for external validation when what really matters is self-validation.
Yes, some of those things you so badly want to get or do that are not necessary, per se, are not the sources of your happiness; you do or want to get them because you're subconsciously seeking external validation through them.
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It's your approval that really counts, so live life on your own termss but don't become a lawless jerk 馃榿. You get the picture.