Waterproofing house stucco

there are many cracks in the stucco covering the outer walls of my house causing rain water, pushed against the walls by the wind, to drip on the back of the drywalls and enter the house from the bottom under the baseboards.
i had gutters and downspouts installed but it didn't help.
i would like to paint the stucco, which now has a natural color finish, with a waterproof paint. i've been told by a friend (not an expert in painting) that he thinks that the process involves applaying first a "base coat" for the waterproof paint to stick to the stucco, then applay the "waterproof" paint which i understand is very thick and finally applay a "sealer" to protect the waterproof paint color against fading since i live in florida. by the way, the present stucco faded after only few years. its color is light yellow and will only one coat of a darker yellow be enough. the house was built 8 years ago and there were no expansion joints installed.
please, i need advice on how to do a good and lasting job.
also, what are the types and names for the "base", "waterproof" and "seal" paints and the recommended name of a company that has developed such types of paints.
finally, how to apply (spray, brush, roll), the approximate amount of square feet a gallon will cover, and the cost of each "base", "waterproof" and "seal" paints's type.
thank you very much. sam