You can either take it to a pro shop (best option) or you CAN use two screw drivers (not a real good idea...but it works in an emergency.) Draw your bow and have someone insert the screwdrivers into the holes in the weels and let down SLOWLEY. This will take the pressure off of the string.

Try to find someone with a press. Or buy a portable one...there not too expensive.

Good luck!
John