So what A times do you think I should be aiming for and should I just push the first A time until I get a good nap or push them altogether?
You can look here at the average:
Average A times- BOOKMARK ME! but every baby is an individual so she might need a bit less than that or more. IIWY I would start pushing and see how it goes, it's really hard to think now till what point to push.
Whether to push just the first nap or the whole day is your choice as you know your baby best. I always did all A times at once because I knew DS can handle it and actually responded not too well when we did just the morning.
I looked at every A time individually as he needed a shorter A time in the morning then the rest of the day. If you write down every increase you do and what naps are you getting you might see that you get a good nap in the morning after a X A time, but that you'd need to look at the second A time separate than the first one.
There is no one answer what to do after a short nap, you'll just need to trial and error. For most babies it works when the next A time after a short nap is shortened by 10 to 20min (depends on the baby) but some babies, like mine was, need a full A time after a short nap. I only found it out because I gave a shorter A time after a short nap and always got an UT nap.