It is very easy.
You require only "Dedication, consistency and hardwork"
There are few important tips:
1) Read content related to daily conversation as much as you can frequently and loudly.
2) Learn meaning and pronunciation of atleast 10 words daily( words which are used in conversation)
3) Communicate with your friends and relatives in English.
4) Think in English.
5) Learn grammar( use of tenses, articles, preposition etc)
6) Make at least 10 sentences daily of your own
7) Be confident
8) Don't feel nervous.
9) Listen to videos related to conversational English and repeat sentences and words
10) At advanced stage: learn usage of idioms and phrases.