Wanting to start out and need a plan

I’m 21 and currently on job placement so it’s my first time getting a real constant pay check. This month I’ll receive about 2700 after tax and I want a plan on what to do with it.

I’ll have around 2100 after my living expenses and I was thinking of putting a next 1,000 I to a savings account.

How should I invest/divide up this last 2,000 to start out