this is the way I do mine.
file then strop or file then lay edge on cardboard to use that as a strop.
lay the file on the bevel perfectly so its the same degrees as the bevel, you don't want to cut into that bevel.
go from back to front on the head while its on an arrow, rest your hand that's holding the arrow on your thigh at the right position so your file hand is perfectly matched to that bevel. the file will feel like its not doing anything or filing you do not want to remove too much metal just "find the edge" which will happen as long as the file is perfect on that bevel and not digging the front or back of the edge.
do a few passes and check the edge and lightly feel with your thumb for the burrs you want the whole edge to have those burrs that have a slight serrated feel when your thumb checking.
when you feel that just go lighter and lighter with hand pressure on the file passes till your barely even holding the file,,,, the file will feel like its not even cutting anything anymore.
now strop in same direction as file was going,,,both sides. remember you want to just pop those burrs off and that's your edge... I would take a ceramic rod to it at this point but its should be sharp enough here just check on your thumb finger nail.
also if you take a belt and noose it with the buckle around something that won't move then pull the other end with your left hand you can use that as a strop in a pinch,,,,,,,pullit tight then nailing the belt to a piece of 2x4 works too,, then pull the nails out and the belt is fine except for one new hole