How to speak english without translating in native language & How to think in english?

THINKING is the process of considering or reasoning about something, and it is the basis for speaking a language, be it any language. Furthermore, language is defined as the standardized code or the method of communication that you choose to express your thinking. The way you sound differentiates different language of speech.
One must understand that thinking and speaking are like different working components of communication in a synchronized fashion. To understand better, "Abstract" thinking does not require a language, but to make ideas to be more structured, it requires a language. To conclude "Thinking" is like a standard component, and "Language" is a variable component of the communication.

Hey,
I understand English can be a difficult language, especially if you are getting used to it. You need to understand that learning a new language is a long process, and you need to give it time.
There is nothing called thinking in English. You need to learn the language slowly, and then see how it changes your approach to the language and how you speak.

Every other teacher focuses on grammar and vocabulary, whereas the main and root causing problem is translation. If you translate into English, you will never be perfect at speaking English as it will create specific barriers. You should start to think in English by observing native English speakers or near-native speakers. Start with simple and end with complex. 

The best way to improve your English, including vocabulary and grammar, is by learning English through conversations. You learn the words and grammar in context and not in isolation. This is the method I use to teach English. Also reading storybooks meant for kids between 13 to 18 years is an excellent way of improving your conversational English. Watching English movies and listening to English songs are ways to immerse yourself in English and learn to speak the language as natives do.

At the end of the day, before going to bed, take out your ten minutes of your time and speak loudly to yourself. You could talk about whatever you have done throughout the day or any thought that came into your mind during the day. You may sit in front of a mirror and speak. This technique helps to improve thinking in English.

Dear Parwinder,
The rate of translation from the native language to the targeted communication is called fluency. The higher is the rate of translation; more fluent an individual is. You need to develop a useful vocabulary. The strong your vocabulary is; the more fluent you will be. Enjoy, Happy Learning!