Well, first of all, I think you should focus on essentials if you don't have steady income coming in. Essentials being anything but luxury items. Sales and discounts come and go so there's no need to rush it if you're financially disadvantaged, especially since none of the current gen systems have any truly compelling software right now (with a few exceptions).
As for the PS4, as long as it reflects your tastes better than the other machines, then yes. In my view, it seems to have the best offerings of the 3, but that's subjective. It depends on how you interpret it. But I'd say you made the "best choice" with respect to purchasing a 8th gen system.
At this point it's a sunk cost and I suggest you make the best of it. Enjoy your PS4. 
Playstation = The Beast from the East
Sony + Nintendo = WIN! PS3 + PSV + PS4 + Wii U + 3DS
