Gas leak in 2000 Camry

I recently just replaced the valve cover gaskets on
the car. After about a year, finally got it running and
filled up the tank. Strong smell of gas but I figured I
had just spilled some on my hands. Pull into the
driveway, walk towards front passenger side and
the smell is overwhelming. Check in the engine bay,
can’t find leaks but the smell is strong. Look
underneath the car, a little bit of spotting but I can’t
find where it’s coming from. Then I notice spotting
in the back. Go back and look, the entire seam of
the tank seems to be leaking fuel. Car has been in
the desert since it was made. It seems as though
either the leak in the tank made its way forward or
there’s two separate leaks. Should I try fixing the
tank or replacing it? Could it be more than just the
tank? Thanks