1. When trying to accomplish a task and not getting results-do you externalize frustration?
Yeah, I generally do, and almost always in the same way: "Rrrgh!!!" i.e. just making a frustrated noise. Sometimes I vent a little too, e.g. "Why isn't this WORKING????" in addition to the frustrated noise. Unless I'm in a professional situation where I really need to stay composed, in which case I might say completely normal things, but seem exasperated.
However, if I'm worse than frustrated (i.e. angry), which sometimes happens when things REALLY aren't working out when I want them to, I'll completely internalize it, but it'll still be obvious to other people - like how you can still tell that the water in a teapot is boiling even though you can't see the water. I never yell or anything like that. I just give off really bad vibes. <-- but I think that relates to being an enneagram 1, not to being an ESTJ.
2. How do you handle/feel emotions? How do they effect your course of action? Does sympathy/empathy cause you to change course?
Positive emotions are no big deal. I just let them come and go and everything's fine, and they make things better and more fun. I'm angry reasonably often, so it never surprises me, and I'm used to it. However, sadness/loneliness/grief/etc. always catches me off guard. I'll suddenly, without warning, want to cry, and I'll be thinking "Where the f*ck did
that come from??" Out of all those different emotions, I think that the only one that makes me act irrationally is anger. When I'm angry, I think I'm rational when I'm not, so I'll say ridiculous things that I don't mean, while on the other hand, I know I'm irrational when I want to cry, so I take a moment to calm down before I make any big decisions. (Any of my close friends could tell you, too, that it doesn't take me very long at all to regain my composure after getting upset. Even in the worst times of my life, I've locked myself in my room, cried for ten minutes, and then emerged completely calm and ready to go.)
As to the second part of that question, I hardly ever feel sympathy or empathy, but when I do, it makes it harder to make my decision. Generally what'll happen is that I'll make the same decision that I otherwise would, but I'll feel really bad afterwards (though not regretful).
3. Are you competitive?
Yes. I don't like being competitive, though, unless I win, or at least do decently (since I tend to define my skill in relation to other people). I didn't do sports in high school, since I was naturally not very good at them, and I refuse to be one of the worst people at anything I participate in. Being in the middle is okay, and winning is awesome, but losing - I mean REALLY losing - is horrible for me, since when I lose, my self-esteem goes to sh*t.
4. When given a problem to solve-how do you use Si relative to Te? Is it like a data library?
I suppose. I generally don't think of my thought processes in terms of functions, but that sounds about right. If you give me a problem to solve, the first thing I'll do is think "What am I
supposed to do here?" And if I have no clue (i.e. if there's no precedent), I'll just wing it, e.g. "Oh well. I'll just do ____ and see what happens." <--- Lol, that sounds like Ne, in retrospect.
5. Do you use your tert Ne at all? I have seen this in an older ESTP-I could help her see different possibilities that did not occur to her and she would explore them with me-but she may not have seen them herself.
See above.

Also, whenever I get really excited about something, I have an Ne attack. Typical (but totally made up) example: "OMG I saw an ad for this movie the other day and it was SO EXCITING!!! Did you know that it's based on a comic book that came out in 1970? So they had to change the setting, and the main character originally had huge hair and so they had to change it for the movie to make it look more modern blah blah blah...!!"
In all seriousness, though, your example seems right. In order to make creative things, I often need someone to give me an idea before I can get inspired and make something interesting.
6. Do you confront people openly? Over what types of issues-emotional or logical or procedural ?
I generally confront people openly about things. I ALWAYS confront people openly about procedural things and logical things - I pretty much never hold back - but when emotions get involved, that's where I get hesitant. I could say the most horrible things in the world without feeling bad if I knew that no one would have their feelings hurt. But with, say, ending relationships with friends, I never know what to do. It's as if I'm fluent in Blunt-ese, and can only have shallow, small-talk-ish conversations in Emotion-ese, but I know better than to try to speak one language with someone who's speaking the other one (which is why I'm so hesitant to be blunt in emotional situations, and yet have too little vocabulary in that to do very well).
However, I'm actually less likely to hold back on emotional things with my close friends, because I know that they'll understand that I just want to help.
7. Above I noted you dive right in once your course of action is set-how long does it take you to set that course of action in time?
It depends. Although it never takes me long at all to go from start to finish in my planning process, sometimes (depending on how little I want to deal with the issue) I might put it off for a while first.
(My apologies if I offend, sometimes my phrasing can be kinda harsh.)
It's not even remotely harsh! It's all good.