Keep progressing in the story until you get some money from Tori and buy a Repair Kit, you can then start collecting from the Vending Machine once a day. At this point, I'd suggest you save up for the first Cosplay Outfit, it's the only required item you need to buy before you get the Spa Room. Then, you can focus on progressing Tori's storyline until you unlock the Spa Room, where you can earn more money everyday.
You can also unlock Lysia's Test interaction once you progress her story enough, it lets you get money once a week.