<prompt> Human: I just got a massive payback from my employer and this is the most money ive ever had at one time.I still live with my parents and dont pay rent etc.All i pay for is my petrol, car insurance, food while at work and money to go out.I earn about 400-500 a week.I would like to know if i should open a savings account, open a credit card and start a line of credit while im young or invest. Just any pointers or anything you would do in this situation, thanks.  <response>: Put it all in savings. Get a membership at a gym use it daily then get back with us in 4 months. 