You got a laugh, because no matter what you did in HS or how much of a hotshot you think you are, unless you are someone who might cure cancer in the future, the A&M college of engineering(minus CS and ID which arent real engineering majors of course) will humble you at some point.
After your first two years, all of the chaff (80%) will have been forced out, dropped out, or "decided that engineering wasnt for them" which really means to those of us that made it, that they quit and are trying to save face.
What I would do in your situation is understand this and do this.
1. Understand that the Civil job market has a lot to do with government projects and that you will have to be a licensed engineer to be worth anything to a firm. The good news is, that 95% of A&M civils pass the PE exam, but honestly as an ELEN I dont find civil that engrossing of a topic.
2. Civil has the most girls period! They also have some actual attractive girls, you cant understate this, because unless you get a foreign langauge or business minor, after your first two years when all the chaff is gone, you wont see any nice girls anymore in the nerd corner of campus, except for in civil. This is a huge drawback, and the harder engineering you are in, the worse it is. ChemE and ElecE have the fewest and worst looking girls, this is because they are the hardest. I promise, the easier a major is the more girls are in it and the better they look, dont ask me why, girls are smart as anyone, but it seems that pretty ones are not encouraged to be challenged academically.
3. Nothing really matters until after semester 3 in engineering anyways. ELEN/NUEN have to take Phys222 which can really blow if you get the wrong prof, if you get Adair or Church you are golden, but if you get the "rotating research prof of doom" you could be in for a rough time.
4. I cant tell you enough, MAKE FRIENDS! Find people who are smart in your classes and that you can respect that they arent lame slackers or idiots and group up with them. Do your homework with these people, study for tests with these people, sure its nerdy as hell and your jokes will start to be inside dork jokes, but this is the best way to survive. You will make solid bonds, like those who go through boot camp and share suffering. All of my good friends now are tight because we were punished the same way.
5. Go with your interests, I know you are totally going to be slammed as a freshman and not know how the hell you are going to get all of this work done. I was listening to Dr. James (EAPO) on the phone one day explaining to a mom that they intentionally give students too much work the first two years and then see who can do the most, without cracking.
However, with that said, if you are on the fence as to what in engineering you would like to do, Id say look at your HS hobbies and see what you are passionate about. In HS I liked building rockets, but I was really passionate about car and home audio. Sure enough here I am a master's student in power electronics learning about how I could build speakers and amplifiers (yes Im actually taking converter and motor courses, but they are the same deals) so you need to find what you are actually interested and tap into your inner nerd. If you cant find what is geeky that really interests you and you want to find out how it works and how you could build one, then I dont know if engineering is for you.
Hopefully that helps, Id say the same thing to any aspiring engineering student. I doubt that the college would let me publish it, but I think that my advice could really help a lot of kids.