someone at 50nl is not pulling in >1k per day. 80 a day is very doable. how much do you want to play per day? how many tables can you play? any idea of your winrate?

just for an example. if you play 5 hours, at 4 tables, you need to pull 8bb/100 to make 80 bucks. obviously, bb/100 can go down if you play more tables or hours or vice versa.

with absolutely no idea of your winrate, and assuming you are typically not a cash game player, i am going to assume 8bb/100 is optimistic, but maybe i'm wrong. Consider also, if you can 8 table for 5 hours, 4bb/100 will cut it, but obviously increased tables = decreased bb/100.

buy pokertracker, i also recommend pokerace hud. winrate is very variable at low hand numbers, but 10-20k hands and you're getting in the ballpark +- a few bb.