If you spend 99% of your time speaking your mother tongue and only 1% is left for English, improving your fluency is always going to be an uphill struggle. Are there situations in which you could use English instead of your native language? This technique is called “replacement” and examples might include: changing the language on your mobile phone to English, watching TV in English 50% of the time or choosing to read a book in English instead of in your native language.