Hi and welcome to the boards
Sounds like you are doing a fantastic job. Your lo is doing great sleeping 8 hours at night.
I would not worry too much about the A time. Your lo is still very young, at this age a nappy change and perhaps a quick song or talk is all you need for activity. The key to EASY is just following consistency, so your lo eats, you change his nappy and put him to bed awake to fall asleep.
If you find that your lo does fall asleep during a feed, try to wake him gently by either trying to burp him or rub his palms and then do your nappy change and put him to sleep.
Hope this helps.
Paula