My husband and I are in college and we make around $15,000 a year. It has been really hard for me to save money and not resort to using our credit card. We aren't any more than $200 dollars in debt with credit card, but I feel like I am failing at keeping our budget.....should I try to do better or would this be difficult for two people to live on...

Monthly we pay $173 in rent
$20 medical bills
$110 phone bill
$15 internet
$200 food
$17 netflix

I know both internet and netflix are both unnecessary expenses, but all I am asking is if I should be doing better even with those.
Additional Details
We live in a low income housing apartment that takes so much of our income a month. We are in school so we can't work much more or we would be swamped, we share internet so we only pay a percentage and we have cell phones with a pretty high plan.... to explain all the expenses.... thanks for your input... I was just feeling pretty bad about not being able to budget better. You all made me feel pretty good though... thank you