Congrats on the new job. I went back FT when DD1 was 3; main challenge was v. long hours and lots of weekend working due to projects. After I went FT, Things unexpectedly went nuclear when I had successive family illnesses and deaths to deal with, so for a few years that meant travelling after work/spare weekends to help or make a hospital visit on the other side of London and not possible/appropriate to take my little one. Those were very hard times, very stressful indeed.
I worked around my DD - so when I could be there for bedtime, I made sure I was; when I was with DD my phone was off. You must prioritise dedicated quality time, and protect that time fiercely.
I didn’t ever look at MN - I didn’t really have a minute to myself until DD was about 6. No haircuts, no GP or dental appointments for years. Shopped for everything online. Friends whittled down just to work friends; sadly no time for anyone else. ( I made new non-work friends later when things calmed down again.)
Didn’t have a nanny; used an amazing little nursery that also did babysitting if needed, DD thrived. She is now 11 and fantastic and we are very close although she can be a bit closed off (I hope it is just her age rather than a flaw on our relationship).
Yes to throwing money at your problems. At the time we were fortunate to find an amazing cleaner but looking back I should have used her more: a big yes to having a good regular cleaner who will do everything - including change beds, clean the oven/microwave, tidy up toys, clean inside the fridge. If possible upgrade to a housekeeper who can prepare some basic meals and sort out laundry.
Have plenty of clothes; it makes it easier to stay on top of laundry if you are travelling a lot. But keep the wardrobe simple - avoiding the need to do any ironing or dry-cleaning is very important.
Don’t over-compensate and buy stuff for your kids, or feed them too many treats to show them you love them. Don’t relax the discipline too far but be aware they may act up more if they see you less; be prepared for them to be more clingy and annoying. Ratchet up the high quality activities and try to preserve routine: if you know you will always be there say on Sunday morning, make it your time with the kids: create a tradition of baking something for breakfast together and if it’s sunny go to the park or if it’s rainy so arts and crafts. Get silly, get dirty, laugh a lot. Read together, be together in nature, do sports. Celebrate birthdays and Christmas properly. Do an annual Easter egg hunt. You want to make traditions and routine and things that are special between you; but leave room for spontaneity.
Plan holidays that are kid-centric. Try to find time to invite family to visit; or go do the visiting yourself. Your kids shouldn’t miss out on having a relationship with family just because you chose to work.
Play dates are less important before school age as long as your kids are getting lots of time with peers (this is why we opted for Nursery not school; playing with a sibling isn’t the same as being in a group with 8 other 3 or 4 year olds). You need to really consider if the older child should be in nursery mornings, while nanny looks after just the younger one.