Not a teacher
I do not know if you live in English speaking country. But if you do not, then you will need to have someone who you can practice your English with. I used to have the same problem about 5 years ago, and I couldn't find anyone who wanted to practice English with me even at a college I attended. At that time the only way I could improve my English speaking was practicing it in front of the mirror inside my solitary room. That was how I did it. When anyone saw me talking to myself in English, they laughed at me. It really helped my tongue move right and pronounced the word better.
Student or Learner