No problem
and remember we all progress at different rates there is no rush here the deep meditation alone will produce profound changes in your every day life THAT is where to gauge your progress don't look for visions or peak experiences, don't even expect anything in spinal breathing just DO it from root to brow and things will happen in time.
It can take days, weeks, months even and you may never actualy see the spinal nerve none of this matters everyone is different but be assured it is working it always does
Enjoy your chosen path