Might as well throw my two cents in here. I am an ASE certified mechanic. Used it to put myself through college then used that to be a maintenance officer in the Army. Let's put a few of these incorrect comments to rest...
1. Brakes are easy. Yes they are. They are only a step above oil change. But we don't teach people how to get dirty anymore. Don't believe me? Just see the declining mechanical scores on military entrance exams. Do brakes take some basic knowledge? Yep, but not a ton.
2. Pad and Rotors need to be worked on as a set. If you put new rotors on you have to replace the rotors (if the are warped or below tolerance) or at a minimum have the rotors turned. This is to create a new machined surface to mate the new pads and rotors. Its possible to skip turning, but you run the risk of premature warpage due to metal hot spots. As a rule of thumb, most rotors can be turned at least once. Also, just by new brake hardware (the clips). They are cheap and reusing old clips is Primary reason brakes rattle.
3. Brake fluid. Here it is kids, brake fluid is hydroscopic, meaning absorbs water. The minor impact is a spongy brake feel. The real impact is water creates rust. Rust in the master cylinder, caliper body, Pistons (both master and caliper) and inside brake lines. This produces pitting and allows fluid to bypass seals. This is all bad. So change it. DOT 4 is slightly better than DOT3, but all fluids are good for no more than 3 years. With an auto bleeder pulling out the old fluid is easy. Two people can do it by hand by just manually bleeding for an extended period.
4. Differences between old and new. Some newer cars have some added steps for bleeding (computer controlled parking brake retraction, abs system bleeding, etc). That's about the only stuff you need to research that may be different make to make or model to model.
And on a personal note... working on your own car is fun as hell and cheaper too. Now, I am not so eager to start, say, working on the high voltage battery, but brakes shouldn't kill you. If you're nervous or haven't done it before, find a friend who has, or take a class at your local community college. Might even turn into a hobby!
Plus, contrary to popular millennial beliefs, chick's still dig dudes that can actually build and fix things with their own two hands!