Twenty situations. Not "English".

Not in general, and anyone promising that is selling something. What daily practice over two or three months reliably produces is specific and genuinely valuable: much greater fluency in the situations you've rehearsed, faster recall of phrases you've used repeatedly, and considerably less hesitation in those contexts. That's what most people actually need — being able to run your standup, your calls and your everyday transactions without rehearsing first.

Because correcting every error mid-flow makes learners stop taking risks, and output collapses — you start checking each sentence before producing it, which is the opposite of fluency. So fluency sessions hold all feedback until the end, then give you the two or three things worth fixing first, chosen because they affected understanding or because you repeated them. Not everything. Accuracy sessions are where correction is immediate, and they run on separate days.

Because they trade against each other. Trying to be fluent and accurate simultaneously produces slow, cautious, self-monitored speech — which is exactly what most learners already do. Separating them means each session has one job. Accuracy sessions take one structure at a time, explain why your first language causes that particular error, drill it in context from your real situations, and test whether you can produce it unprompted.

No, and that's said upfront rather than discovered later. Text builds vocabulary, phrasing, grammar and the confidence to produce language. It doesn't build pronunciation, listening at natural speed, or the pressure of replying in real time with someone waiting — those need speaking and listening. The cheapest bridge is reading your own practice conversations aloud and recording yourself occasionally, which costs nothing and which most learners have never done.

That's the most common case, and it's where practising with a machine genuinely helps: infinite patience, no judgement, and it'll repeat as many times as you need, which no human partner offers indefinitely. It's also worth knowing that fluent speakers of any language routinely mishear, ask for repetition and misspeak — error tolerance is far higher than learners assume, and listeners are attending to meaning rather than grammar. The first thing taught is the small set of phrases that keep a conversation alive when you're stuck.