The 10% rule (cited "The richest man in Babylon")
The first step is to make yourself useful by offering your service to anyone who can pay you a salary.
Then, you need to save 10% of your salary every month before anything else. This step is vital because if you do not start off here, you might not have any left at the end of the month. You might give yourself excuses like "Oh I will just save next month, which is coming up soon" and the excuses will go on and on.
The best way to save the 10% these days is to open an online savings account linked to your normal bank account and have a automated transfer on the day of your salary payment.
Start saving today!