<p>Engineering is not necessarily more difficult than any other field, it just depends what you’re good at. Engineering is more about understanding concepts and principles rather than memorizing facts. If you don’t have a problem actually understanding the concepts behind your math and physics classes, then the only thing that will limit you is your effort.</p>
<p>If you’re a straight A student with good test scores and decent extra curriculars then I can’t imagine you having too hard of a time getting into UC Berkeley, but I don’t really know too much about the school.</p>
<p>My sister is not pursuing engineering degree but she knows a lot of her friends who are in UC Berkeley for Engineering and they are having a hard time. And all of her friends have excelled in high school.</p>
<p>You can attempt to teach it to yourself or as you said buy a barrons book, but I would wait and take a class in your hs if offered. I myself thought physics would be a very difficult class but ended up LOVING the class.</p>
<p>Early on both engr and physics are basically math classes. You’ll investigate a physical concept (say the flight of a ball) and use math to calculate the result. A typical question might be: a 10 kg ball is shot out of a cannon at 100 km/hr initial velocity. It hits the ground 2 km from the cannon. Ignoring aerodynamic drag, at what angle was the barrel of the cannon? From there you’d apply a formula and do the math. The concepts others have mentioned is knowing what formula to use and the math is being able to solve it.</p>
<p>By all means take a course - even Einstein had to.</p>