I think i am stuck

Greetings, i am new to a mining scene.
i just created my nem account and would like to start harvesting but it says i have to send an importance transfer from the left panel to activate my account. but whenever i try to send xem to somewhere i dont know of ( i just pressed send button tho) and it keeps saying insufficient fund. how do i get a start money to activate my account?
NBN3ZT-WSMAXE-G3IY2C-PEAYF5-IL5PNC-AGHMGV-7UXI
this is my account tho…

You have to buy some xem at some exchange and send it from the exchange to your account.