Some ways to learn English without problems are.
Think in English. Sometimes, the difficult thing about English speaking isn't the language itself, but how you think about it. ...
Learn from English Media on FluentU.
Pay Attention to Stressed Sounds.
Talk to Yourself.
Master English Registers.
Use a Mirror.
Focus on English Fluency, Not Grammar.
Try English Tongue Twisters.
Start speaking English as much as possible.
Get a personal tutor.
Interact with English every single day.
Use resources made for your level.
Work on your pronunciation.
Learn phrases, not words.
Accept that you will feel uncomfortable speaking English.
Consider a big lifestyle change.