So, I basically want to use the below command:

/execute if entity @p[x=-1856.5,y=122.0,z=-133.5,distance=..3.5] run tp @p ~-4 ~1 ~

but using relative coordinates to the command block instead of these specific ones. Is it possible?

Edit: Also, could i compress various relative coordinates into one single command block? What i mean is, for example (i'm not sure the syntax is correct):

/execute if entity @p[x=~1,y=~1,z=~1] and [x=~2,y=~2,z=~2] run tp @p ~-4 ~1 ~