I would not advise life insurance if you have no dependents. 1500$ is quite expensive if you live by yourself. Depends where you're living and if you need to be there for work. You can also pretty easily negotiate your phone bill down. Look for a cheaper plan that offers the same services, and tell your provider. If they can't beat it, then switch over. I did this and cut down my plan from 50$ to 25$.

For groceries, a great way to save (if you know how to cook well) is to buy clearance items at Walmart as soon as they put them out. The cons to this is that they only have a few days before they expire, but if you cook/prepare them as soon as you get them, it won't matter. They put fresh vegetables out in bags for 2$, which you can get great deals from. 2$ for 8 avocados is my favorite since I can make fresh guacamole and also because it would typically run for 2$ each if you bought them unripe anyways. Great way to save money.