There are a few things you can do in order to make $500 a week realistically. One option is to get a part-time job that pays at least $12.50 per hour. Another possibility is to start freelancing and complete short tasks or projects that pay at least $10 each. Finally, you could also look into earning money through online surveys or by selling items you create or resell online. Whatever option you choose, make sure to set a goal and work diligently towards it so that you can achieve your desired earnings.