You keep saying LOL. That shows you may not be ready to use a credit card responsibly.
You need income proof and other documents to apply for a credit card.
If it is for your mom, she can get a card and an add on card in your name.
This is how a card is:
Credit card is given in your name.
There will be a limit for your card. Limit means the maximum amount you can purchase using that card.
When you use the card offline or online, the amount you spend will be recorded.
Every month, they send a statement showing how much you have spent using the card. There will be a pay by date. You should pay the spent amount before that date.
If you do not pay, they will give you hell.
If you pay, they will give offers so that you spend more and somehow you miss payment so that they can charge you more fines and give you hell.
So unless you need it absolutely, you are responsible, you have money to repay what you spend, only then take a credit card.
Its not recommended for fourteen year olds IMO.