I know people who feel like they've wasted years of their lives because of poor choices. Your past experiences, good & bad have deposited something on the inside of you. Those challenges have sharpened you, to make who you are today
Fairy tales are more than true: not because they tell us that dragons exist, but because they tell us that dragons can be beaten. Quote from GK Chesterton. These 33 One-Sentence Quotes Will Blow Your Mind Every Time.
Try not to stress over the shady people who betrayed you. I know it hurts, but the truth is that they were always shady, they're never going to change, and you're actually much better off now because at least you know who they really are. (For my friend)