Benny Lewis (Fluent in 3 Months[1]) says he doesn't speak English, if people try to switch. His approach is basically go to pubs and try to speak from day 1.
On the other end there's Khatzumoto (All Japanese All The Time[0]) who spoke as late as possible, getting as much exposure as possible first (had Japanese audio on 24 hours a day for 18 months).
After 18 months of "input-first" learning, he did a phone interview with a Japanese company and was treated as a native speaker (and hired and moved to Japan).
Benny's method is about getting a "workable" level as quickly as possible (at the risk of forming bad habits in accent early on, misusing grammar & vocabulary).
Khatzumoto's method (based on linguist Stephen Krashen's Input Hypothesis) is about getting a solid model for the language, which the brain builds naturally through constant exposure, before speaking or writing a great deal.
For more on these methods check out their respective sites. As an introvert I prefer the "listen first, speak only when necessary" approach, rather than "go out and make an ass of yourself from day 1" :)
[0]: https://ajatt.com/
[1]: https://fi3m.com/
No affiliation, but I have great respect for both, and have benefited from their advice tremendously.