Daily meditation can help you to step out of yourself, as it were, and take a real sober look at yourself - mind you, without actually pursuing that specific goal. I mean zen-style empty-mind meditation (or 'not-thinking' as some Western authors on magic call it) that is not practised with a definite aim like blissful calm or anything else in mind but as an end in and of itself. Without having any idea beforehand that such insights could be achieved at all, it gradually showed me the web of emotions and false narratives I've been caught in all my life, a cluster of conditioned habits and knee-jerk reactions I've always stubbornly identified with because I was so used to thinking of them as my 'real self'

.
Again I would like to stress that such a detached perspective cannot be achieved deliberately and directly; I'm not even sure every meditator has the same experience. It's just that I think that all those self-help books purporting to show you how to 're-program' yourself by means of contrived affirmations or phony positive thinking are a lot of baloney. Your emotions will invariably sabotage any conscious effort your intellect may make to alter them. Solemnly declaring "I am a likeable confident person worthy of love and respect" several times a day will not make a iota of difference if such notions are completely alien your subconscious self-image. Authors claiming that habitual, deep-rooted emotions can be changed by means of words alone should be prosecuted IMHO.
Introspection is a funny thing. If performed by the mind alone - the stereotypical musings of a so-calle 'self-awarethinking person' - it can easily lead to even more useless verbiage (that's how I describe the contents of my own private journal these days

) that will get you precisely nowhere, and I should know, having cultivated this embarrassing bad habit for decades. You go round in circles because you're still tangled up in that web of emotions and false narratives I mentioned above. The answer, in my opinion, is not modfied, clearer or (heaven forfend!) even more intense thinking but
not thinking at all, only experiencing without any running commentary in your head. It's hard to develop that mental knack but can be achieved.
When I first succeeded in stilling my mind for whole ten seconds or so at a time while walking, I was overwhelmed by the feeling how utterly
banal everything I saw was. I expected some sort of crystal-clear mystical perception but instead I was blown away by the sheer
mundanity of it all, which is how I came to develop the following theory (which may be even more useless verbiage on my part

)
Most, if not all, of our ideas about ourselves are illusions. You were raised to perceive yourself in this or that light, had experiences that confirmed this perception or added yet another false layer made up of mirages - after all, high self-esteem (esp. when unfounded) is just an illusion as low self-esteem (esp. when unfounded as well), which genuinely bipolar people will wholeheartedly confirm because they know how it is to cycle from being an omnipotent god one day to feeling like the lowliest vermin on earth the next. This is exactly the point where many NewAgers and armchair occultists will nod sagely and piously declare that everything was an illusion anyway. No. It's not simply a matter of changing one's perception (which can't be achieved deliberately anyway). It's a matter of
being and truly becoming.
I'm not trying hard to sell you on the benefits of empty-mind meditation here. In my mind, explicitly suggesting "Meditate and you'll see…" or "Meditation can help you realize that…" is like putting a hex on someone, thus robbing a person seeking transformation from his or her genuine meditation experience (which, however, doesn't stop almost every author on the subject under the sun from doing just that

). Meditation, for example, doesn't calm me down. It just doesn't, sorry, no matter how glowingly most books describe all its alleged stress-relieving effects. I've made a promise to myself to treat all meditation-related experiences with the utmost sincerity and will therefore resist any attempt on my part of hypnotizing myself into any artificial state of mind that has got nothing to do with the way I actually feel, so if all the houses, cars or people on the street appeared utterly banal in their normalcy in the beginning, fine, because that's what I actually experienced back then - which btw has changed in the meantime and turned out to be yet another layer of illusion.
If you're interested in the subject, I recommend Culadasa's "The Mind Illuminated" (about a dozed free copies can be found on annas-archive.org) and/or its companion volume
"A Meditator's Practice Guide to the Mind Illuminated".