It's not much easier 2nd time 'round either!!
Breastfeed for as long as you and the baby are enjoying it, or for as long as it's working for you.
From experience- breastfeeding is easier in terms of getting things ready, carrying stuff around when you are out, keeping stuff sterile etc etc- bottle feeding has lots of accompanying "jobs"
it is nice to have a little sleep in bed or on the couch next to your baby while he/she feeds. Both you and baby will learn how to do it in most cases, within a few days.
Your partner can take the odd night feed, either using your expressed milk, or a formula feed- whatever's easy.
Either way, introduce a bottle sometime between 3-6 weeks- too much earlier, and you risk nipple confusion, too much later, and the baby might be "addicted" to you, and will refuse a bottle.
I introduced a bottle too early with my second- I decided i'd do a night bottle and get a sporting chance of 6 hours unbroken sleep a night.
I started giving the night bottle from about day 3, it worked like a charm, but my baby preferred the ease of the free flowing milk from the bottle to working away at my breast.
I finally gave in and swapped to bottle after 3 months of trying to sneak a breastfeed into her while she was asleep, while I was walking around, using nipple guards so she would'nt feel the difference between teat and nipple, but she was never fooled!!!
Expressing and giving breastmilk in a bottle is really hard to maintain in the long term.
It has all of the disadvantages of both, with none of the advantages of either, except, your baby is getting breast milk.
That's what I found anyway.
Baby is happy if mummy is happy. No good giving breastmilk if it's making you miserable.