haha I understand.
1. Chakra is a form of life energy that is contained within all people and with discipline and training it can be used to create genjutsu and ninjutsu techniques.
2. The 5 basic chakra elements are Earth, Water, Wind, Fire, and Lightning.
3. In the narutoverse each of the elements has another element it is weak against or an element that will strenghthen it. An example of this is fire, fire is weak against water whereas wind will strengthen any fire elemental jutsu.
4. There have been very few characters we have seen who have had the ability to manipulate all 5 elements a few being the sage of 6 paths, and nagato. Other characters in the series who have been able to use multiple elements have only been able to do so with the help of ninja tools.
5. My favorite element is water because of the endless possiblilites that are available with it. Water appears naturally everywhere across the world so this medium is highly accessible.
Hope that answers most of your questions senpai hehe