Hey! ESN positions are kind of a hit or miss. If you pick placements such as St. Paul's Hospital or Vancouver General Hospital, then it may be difficult as these are popular options for placement. However, I know that it also depends on the Health Authority as some of them, like Fraser Health, are harder to get into.
I would encourage you to attend the ESN workshop because I can only speak from my experience working at a VCH site. Best of luck!