MY HV said exactly the same thing to me, when my DS was 6 or 7 weeks old.
It didn't work - he just grizzled and had to be carried around by DP, trying to keep him amused. Then got more upset until I gave in and fed him.
We tried it for 2 days, it was knackering and daft, and I regret having tried now. DS was just such a frequent feeder, I was very tired, and wanted a magic wand to make life more manageable.
When DS got older, his feeds spaced out naturally. And he slept more. No effort required from me, I just resigned myself to feeding on demand.
My view is that what your DC is doing is fine, if knackering for you (and I do feel your pain!). I really really think if we just let very small babies behave like very small babies, and not expect a 2 month old to behave like a 6 month old, we'd all be a lot better off. Not least the babies.
It frustrates me when people say small babies 'can' got 2 hours, or more, between feeds. I dare say I 'could' go 24 hours between meals with no tragic consequences, but I wouldn't be very happy about it.
It sounds like your DD is doing really well, so I'd keep doing what you're doing, and if frequent feeding in the day is giving you decent(ish) nights, then hurrah!