thanks everyone!
the process i used:
camera on tripod
self timer - running to each pose
in ps i used one shot as the main page to paste to
i'd bring up another shot; select all, copy all then paste on the original
once pasted, i loosely traced around another image of me with the lasso tool
then under select - inversed then deleted selection
repeated the same for the remainder
you may have minor exposure clean-up...depends
the key is NOT TO MOVE THE CAMERA
i've read a bunch of ways to achieve this, but found this way much less time consuming and detailed for me. i spent about 35 minutes in image posing plus PS work.
hope this makes sense and thanks again!