This might sound dumb. I was a shy kid who had trouble bonding with people and making friends. I really should've taken drama, and now I regret it. I basically sat myself out on opportunities and experiences, but by accident. I wasn't a social butterfly, and always made attempts to be socially active, by enrolling in classes, playing sports, taking programs, hitting cafes and bars, and going to weekend events. Otherwise, I spent excessive amounts of time in my room, sitting all by myself on my computer for hours on end, and spending the evenings watching prime time.
I really wish that I listened to all the advice my dad gave me as a young teen. I hadn't realized how time moves on, and you need to take advantage of the present, or else 25 years later, you'll go "Oooppps, wish I put myself to the challenge." Now I'm an adult, but I still have people making occasional comments, "Smile" or "Don't be afraid to talk to people." Possibly, I'm just a natural introvert, who enjoys my own company, and does my own things.
But after all these years, I feel like I've just been hiding. Hiding is what probably killed my wish fulfillments because I refused to leave my comfort zone. To top it. I spent a good 3.5 decades hanging out in the same room, hardly ever making a difference.