Alina, Sorry for the late reply but I have been out hiking/paddling…just catching up.

These are the basic flat tarp setups.
A flat roof is not shown. While it is good cover, as Rex says you need a pole to raise it in the center somewhat and it catches a lot of water. You generally have to push water off it every 2-10 minutes. It does not catch much wind, though, basically like a sheet of paper flapping in a wind.
A Lean-to pitch is the easiest. Just tie off to a couple trees and then stake it down with 2 stakes. It can catch a lot of wind. Leaving it up, off the ground, with some 12-14″ pieces of line about 6-12″ means it will not catch as much. (The aerodynamics are a bit more complicated, suffice to say it relieves internal pressure by about 25% via a “spoiler” effect…) It also benefits from a center pole. But, it also blocks a lot of wind and rain from one side.
The shed roof catches about half as much wind as a lean-to pitch. You need four stakes for this one though. A ridge is formed helping to deflect part of the wind. Leaving it off the ground creates a “spoiler” effect, too. This is the preferred compromise between ease of set-up and protection.
An A-Frame is a symmetrical shed. It has about the best aerodynamics. It sheds water fairly easily, easier than a lean-to or shed. If you stake it down to the ground, it also becomes a sleeping shelter. Though all can be used to sleep under providing good wind protection and rain shedding. Usually setting on a slight mound will keep you fairly dry.
There are a lot more configurations you can use. Mostly, they are variants of one of the above. You should practice with a few pieces of paper.

Diamonds are simply done on the diagonal with a single pole. They shed wind very well, but driven rain can enter through the wide front opening. But they generally are a good shelter. Using an asymmetrical tarp, they can be set against the wind, reducing the amount of driven rain. You can cook under these, also. These are simple to set up. Simply tie one corner off to a tree, then stake down the opposite diagonal, then the sides. They take three stakes instead of two, however.
There are hundreds of variations on these. Every time you set one up, it will likely be in a unique configuration. Some people play origami and create all sorts of strange looking shelters. But, knowing these gives you the basics and quick shelters if you need them. Any of these can be used to extend living space with a tent.
Camping solo, I use a modified A-Frame shaped tarp exclusively. It is the lightest configuration with full storm coverage (well, except in winter.) With a partner, I usually give her a smaller 9×9 flat tarp. Even with 1.1oz Silnylon, it only weighs around 11oz. My shaped tarp (for two) goes around 17oz (including stakes and guylines,) or, around 14oz per person total camp weight. The 9×9 I often use over my fire in rain storms. So, I consider it more or less disposable. (I just make another every 5-6 years.) When these are dipped in permethrin and sprayed with DEET, they are fairly bug free. A simple 1mil piece of plastic makes a good ground cloth.