Tips for 2-3 year age gap?

We are planning to start trying when my son turns 2.

I am a SAHM with a husband who travels often for work and no family help or childcare. (I do go to the gym daily and get a workout in so technically I have the gym childcare for up to 3 hours per day. He only lasts 1.5 hours as he is currently 18 months old). I'm working on interviewing babysitters to have on call in an emergency and we are on a waitlist for Fall 2026 for 2 different preschools 🥵

My husband was recently promoted and his job is very demanding. He was very realistic in telling me that he may not be able to help as much as he did with our first. His company gives 6 weeks paid paternity leave, but with his new responsibilities (he is 5 peoples "boss"), he feels he may still have to work during that time (somewhat). Last time he was completely plugged out for 8 weeks (his company was very generous and accommodating and allowed 2 additional weeks paid leave for our 14 day NICU stay). It rolled into the holidays and turned into almost 12 weeks of him not really working and still getting paid (praise god lol).

What are your best tips for managing a 3 year old (or almost 3 year old) and a newborn? I want to be sure I'm as prepared as possible for my new reality.

Going to be sure to soak up and enjoy the next year of just me and my first

Thank you in advance!