1997 Nissan Altima fuel issue. Please help me...

I own a 1997 Nissan Altima SE 2.4L DOCH-FI KA24DE engine.

Recently, since I have no sense of smell whatsoever (like eyes to a blind man, literally), my girlfriend pointed out to me that I had a gas smell around my vehicle. After a couple of days (once it quit raining) I got under the vehicle and located a damaged fuel hose (I swear it looks like it was cut). I replaced it and drove the car for two days, where it quit working again. This time, I could not get the car to work, period. As long as the battery has a charge, it will turn over for days on end, but no crank. I have replaced the fuel pump (with the cheapest one I could find on Amazon (I'm cheap, sue me)) and the fuel filter. Still nothing. I have blown into both the incoming and return lines to very no blockage. A professional mechanic was present and said it was all clear. Still no crank. I took a pump (first link below) and connected it to the fuel line after the filter, before the injector rail, and pumped as much pressure into the line as I could. No leaks that I could see, and the car cranked just fine, bus as one would expect, it only runs so long as I can keep pressure pumped into the line. (Fuel pressure regulator??) But whenever I remove the fuel line from the bottom of the filter nothing comes out when I prime the pump over and over. (With pressure, I can crank the engine, so that eliminates and "getting fire" issues, at least as a main problem.

This car is literally my only source of transportation to and from work, and I must get it going again.

I have come to accept that the pump I bought (second link below) is just trash and not pumping hard enough, but there should still be some gas coming out of the line.

Oh, and yes, the pump cuts on every time I try to prime it. Every time.

I am not a mechanic, and I have no idea what i'm doing, but there is absolutely NO MONEY to hire one, so I'm stuck doing this on my own.


https://www.autozone.com/test-scan-and-specialty-tools/fluid-pump/oem-fluid-transfer-pump/94647_0_0
https://www.amazon.com/gp/product/B004A7PN92/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1