Source: Google Images
Sheldon didn't learn the power of collaboration and often preferred to work alone, missing out on valuable teamwork opportunities.
Source: Google Image
Despite his tendency to act like he preferred solitude, Sheldon actually needed people around him for support and companionship.
Source: Google Image
Sheldon failed to appreciate his father, George, and all the hard work he did for the family.
Source: Google Image
Running away from problems didn't solve anything, as shown by Missy's failed attempt and later by Sheldon himself.
Source: Google Image
Dealing with failure was a challenge for Sheldon, and he struggled to cope with setbacks and disappointments.
Source: Google Image
Sheldon didn't fully value his twin sister, Missy, and often took her for granted, failing to recognize her contributions.