I have been considering that I may be a socially introverted ENTP. I don't think extraversion necessarily has to be gaining energy from people, although this may often be the case. I think it could also be gaining energy from activities or ideas. Most people exhaust me, but I think that could also have to do with boredom. I also can easily get overwhelmed by my environment in the form of sensory overload. I need quieter environments to focus and think. I can enjoy socializing, but my endurance depends on how interesting and engaging it is. I get drained from most social environments. I can also go a very long time alone. That said, you are never entirely alone. Especially now with all the fun interesting information you can binge on from the internet. There also is the role of social rejection during key developmental years. I would imagine a lot of ENTPs, especially women, struggle to fit in. I had a hard time making friends growing up. I got better at making friends as I got older, but I have never been a social butterfly. I can be outgoing especially after a drink or two, but most social situations don't interest me.
My primary reasoning on me possibly being an ENTP rather than an INTP is that I think my Fe is stronger than my Si. I don't think INTPs in their early 20s are supposed to be able to have a relatively strong sense of the emotions around them.This is present for me except for when I get very stressed or very excited. I have issues with being messy, being on time, remembering to do mundane chores or pay bills. When I was in college most major tests/ projects resulted in an all-nighter, or doing it the morning it was due. That said, socially I am more introverted. Socializing can be a chore for me. However, if I am with people who I enjoy and we are doing something interesting, then I can go for hours. I also have inattentive ADHD, which is apparently more associated with ENTPs.
Apparently INTPs usually don't actually care about the impact they have on the world. Call it a cliche, but I want to change the world. I want to understand the world, but I want to use that understanding to make it better. I see way too much room for improvement that I see as critical not to.
Not sure if listing hobbies could help but... Hobbies/ interests of mine include: multiple musical instruments, occasionally compose and arrange music, exercise regularly, turn my kitchen into a mischievous healthy laboratory, health & wellness, science, politics, various social media platforms (Tumblr is probably the most addictive), socializing in moderation, trying to figure out the whole God/ spirituality thing and watching way too much on Netflix.
But I really enjoy it 
