You cannot reliably say a sound you cannot hear. Training perception is the quiet first step of speaking well.
Learners often rush to speak. But speech begins earlier — in the ear. If your language does not distinguish two sounds, your brain has learned to ignore the difference, and you will not hear it in the new language either. What you cannot hear, you cannot reliably produce.
Before drilling your mouth, drill your ears. Listen for the contrasts that matter, compare minimal pairs, and only then bring in production. The mouth follows the ear more easily than the reverse.
Sleep is not downtime — it is when the brain consolidates what you learned.
The most common way people study is one of the least effective. Here is what works instead.
Memorising word lists is slow and fragile. Meeting words in living context is how real vocabulary grows.