95 Jimmy hard to start and then stalls

Well this just started a couple of days ago and has gotten worse would start just fine and idle fine put in gear and I have little to no throttle if you give it to much would stall out but would start right up now it s hard as can be to start like 15-20 minutes to start others starting fluid and will idle great but same thing go to drive little to no throttle I can hear fuel pump priming it was changed over summer as filter and have replaced so many parts I am at witts end does anyone have any ideas

check fuel pressure with gauge ,had same problem and it was the pump, make sure to get oem .

I had a feeling it was pump but was in denial getting gauge to check pressure to be sure replaced over summer but with Autozone one figures was hoping it might be something else thanks for your post will post what I find