My advice is to take it slow, listen to your body and don’t force it. If there is a day you wake up and don’t want to wear, then don’t. If you force it, you’re more likely to binge and purge. Giving yourself the permission to not wear if you don’t want to is what gave me to confidence to wear without feeling shame. I rarely wear panties, but when I do, mommy embraces the sexier side of me. While it is fun to help yourself FEEL helpless, losing actual control is a huge deal and shouldn’t be done lightly (if at all). Try drinking tons of water, keep a fiber filled diet and use suppositories/enema for the loss of control feeling.
For new born days, don’t over complicate things. If you aren’t naturally an “infant” headspace then do whatever age feels right for you. Look up a common schedule and activities for that age (ex. 6 month olds schedule and activities) and follow it. Talk about what you expect from your caregiver and a general plan for the day. Practice those activities in small portions and find what you like and don’t like before putting a day together.