How to filter a jittery daily meter

Configuration
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I’ve a very jittery daily meter, resetting at midnight:

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13132×1641 198 KB

I tryed simple filters using the examples on the docs: Filter - Home Assistant

those are the results (azure is low pass filter only, yellow is sma filter only)

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they are both good on the main curve, but the problem is the start. how can I make the filter start from 0?

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Hi wergio,
This what you are looking for?
Filter - Home Assistant.
Oops, I see you tried that.
Did you try a moving average possibly?

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yes, moving average has the same problem: a initial curve, instead of starting from 0