How do you Invest in Crypto

hey friends i am newbie and i like to invest in crypto currency
i have to many question in my mind, i wish i ve got some answres

1- what are the majore factors to focus on when buying a new crypto ?

2- why every day we see ton of new crypto been launched ? is there no laws in the world that controls crypto ?

3- what is the difference concerning the stracture of crypto , are they all like bitcoin ( Blockchaine , and the same way of Maining ) or each one got its own systeme

4- what…

How do you Invest in Crypto