Thats alot of carbs!
While im aware that 'times can get tough' in some countries in regards money, wages etc. I think at least having solid and somewhat balanced meals would be important. Down the line if you don't you may run into other problems and might have to visit the doctor (which will cost you even more money in the long run).
You could have decent solid meals on a limited budget. But you would have to be willing to:
- Cook for yourself
- Shop around for places that have decent prices/deals
- Look out for special offers. As far as im aware, supermarkets do 25-50% off deals for items late in the evening. Which would be a better time to shop.