2006 Ford E-Series Van van problems

One day engine light came on. Shortly after a rough idle and it started to stall when I would give it gas.I stared by putting a new battery, changed oil, replaced fuel filter, spark plugs and coils. After that I went a block down the street to gas station to put some gas in it. Started the van up idles better put it in drive and gave it gas it struggled at first had to rev the engine at stop light so not to stall. Continued to gas station. Pulled into parking lot and it died on me. Cranked it back up and started to drive had to keep pressing gas pedal so not to stall until I had to stop at light and then it died. Started it up again pulled into driveway and then it dies again. Started it again then stopped put it in reverse and gave it gas and it dies again. Started once again had to keep reviving the engine just to get in parking space. Please help me.