Try counting what you did rather than how long you have gone. Days passing and acts practised are not the same currency.

What the research says

Pooling 48 samples and more than 21,000 people, habitually reinterpreting situations went with more positive feeling and life satisfaction, while habitually holding expression in went with more depression and anxiety. The load bearing word there is habitual, meaning the thing repeated rather than the thing intended. These are associations across people, so they do not prove that adding repetitions will lift your mood.

Strength of evidence: one line of research. A single study, or a theoretical account.