At 5 weeks I would take it slow:
- take some key concepts (use a comforter, bedding guide, don't use a dummy, try to put bub down to bed drowsy but awake, approximate times bub may be able to stay awake for).
- don't get too stressed yet about following the times to a tee. Grab the basics and feel your way. When bub is a little older (2-3 months) you can start cracking the whip at bit more