If the rubber hose went in fine, there should be no obstruction ( did you get it all the way in the fuel tank itself?)
Did you experience the issue with one pump nozzle only?

 

Yes I fed the tube in very far, so it must have went into the tank itself. It is every nozzle. Upon investigating, i noticed an old photo from when i dropped the tank and replaced the fuel pump. I zoomed in and there is a small red cap on the vent valve tube! Just removed it, so maybe that will fix my issue.

*previous owners work has given me many headaches already. Cant complain about it too much cause the jeep was cheap haha