Hello guys, I'm new to bitcoin, so there are things that I misunderstand.
I have a big interest in bitcoin, in the future, I want to make money with and invest in bitcoin. So I really need your advice.
1) Which wallet should I choose to keep btc? There are so many choices so that confuse me. I know about Electrum, Blockchain, Coinbase,... Does it secure?
2) I need to make money by myself before I invest them, so how can I do to make some bitcoin?
Thanks for your help.

SPV wallet such as electrum is really secure for you.
Go to the service section and find the correct job for you. or try to mine altcoin and sell them for bitcoin or mine the bitcoin for directly.