[/quote]Now, another question: How many flavors of ENTP are there?
I think there are six, just like the elementary particles.
(1) Fluo-coloured sprinkles. That's the typical enthousiastic scatterbrained ENTP jumping from one idea to another, never finishing anything. Fun, but no content in it, no real flavour. Like sprinkles without a cake.
(2) Lemon zest. That's the bright intellectual one. If you can stand his academic talk and boasting about knowledge, you'll find him a very helpful and entertaining person.
(3) Bacon. That's the one with a strong Fe. Either you'll get him baked well and crisp, the ENTP who finds ways to be truthful and kind at the same time, who will help you by finding all sorts of solutions. But you could also have the burnt kind, the narcistic ENTP.
(4) Chocolate, like Thea says. Some ENTPs do have a Se and know what tastes good.
(5) Ginger. You'll get that taste when the Te comes up and our ENTP is bent on proving he can reach that deadline, finish that work,... In small amounts, it's okay - gets things done. But if this becomes the main taste/concern of the ENTP, you'll get a bad-tempered, frustrated one.
(6) Baked neutrinos. If you never tasted them, you need a bigger Ne. That's the ENTP who commits all his energy to something crazy. I mean really crazy, not just the sprinkles kind of crazy. You'll probably never know if he's a genius or a madman... unless you're able to taste baked neutrinos, that is. Douglas Adams is an example of this.
I've had some problems (though much less than your brother) which have been solved by making my reasonings explicit.
I have been trying to write when I was alone and had to work for school when my husband was home... because I was afraid that if he was home I could only either work or pay attention to him; so I'd never have time to write. Of course, when I realised I was making this reasoning, I also realized it wasn't true.
We are able to make very unlogical reasonings and live to them, except when we realize what's at the base of it. So dig it out. Ask "why do you do this". Tell him explicitly what you don't like about his behaviour. Chances are he's struck into a pattern and he'll only able to change it when he explicitly knows which pattern he's struck in.
The brutal no-nonsense tactless way works the best for me. "Look, I think this is your problem." Chances are he'll try to prove he has no problem or it's not that... but then he'll have to search arguments for it, and reasonings will be made explicit.In our family we are surrounded by ISTJ's and a couple ESFJ's. So you can imagine we both clashed with everyone else growing up, but the two of us saw things very much the same. I relate to him, and why the rest of the family just doesn't understand why he is the way he is, I do understand. I feel like I could just as easily been in his position, but I married early in life and that helped me from floundering too much.
I feel like, I've matured, and I'm becoming healthier as I get older, but he seems to just continue to flounder. Is there anyway to reach him?
Here I've answered some questions about you guys. I've seen more ENTP's answers on it, too.