Not sure if you just want this info to do your own nails or you want to offer a nail service to paying clients. If you are planning on doing any nail treatment on clients you need to be insured, to be insured you need to be qualified in what ever service you plan on offering. It would not be very professional if you do not know what it is your are doing. Nail technicians not only learn how to apply nail polish, it is far more in depth than that, hence why we pay a lot of money in order to get qualified.
If you plan on doing nails at home just for yourself, then I would suggest looking on YouTube or similar for ideas. There are loads of different products out there aimed at home users. I believe professional products should be left for the professionals.