Fuel pump and fuel tank removal

Will my fuel pump went out so I paid a mechanic to check it
Out and 50$ later I was told it was fuel pump he hit with starting fluid and it started right up start running fine he took the filter off
Check the relay he even listen to the pump and he said it makes a noise
But It might be weak because the fuel line from the filter connected to the
Fuel tank isn't releasing any fuel now I check various of videos and
I was told that I will have to pull out the fuel tank from the trunk which I see I unscrewed the straps pull the left side half way out but the tank won't budge what should I do I see the fuel pump module all I have to do is just get to the middle of it and replace the fuel pump I believe so what should I do? Ps. I have a 91 jaguar xj6 help please