L&D can be hard to break into. You might look for a position on a OB/GYN floor first (not the same as L&D I know, but they often have the same NS manager :) Once the manager knows you're a good employee you'll have your in. You can be upfront...
Congrats on your pending graduation. I've been a psych home health nurse for several years now. Currently the biggest requirement to getting started as a psych home health nurse is that Medicare requires a minimum of 1 yr of inpatient psych experie...