this is why i love me some sexy mexy(very good connect) $20 and im set for the week sometimes a little more. i was in a similar sitiation than you as far as my weed budget goes, and it was killing my funds way too much so now i only buy some bomb shit when ever i feel like smoking some mids or better.
its good your trying to help your parents. Im sure that they will gladly appreciate it. and whenever you need help it will probably make it easier for you to ask. sometimes it can be hard to ask for help.

keep on chiefin'