I wish I had the groundedness, patience and moral-direction that comes with Fi-Si in INFPs. I envy all Introverts. I feel like I have to constantly filter a lot of Ne-Te blabber-mouthness, although it's fun to dabble in and can be quite clever and perceptive when delivered properly. I feel like there's more quality when an INFx says something; On the other hand, I want to say and do too much, and it's lead me to a lot of embarrassment in the past.
It must also be amazing to have the ability to entertain yourself with solitary activities for a lengthy period of time without questioning your sanity. Social-last must be heavenly.