I’m from Vietnam. I’ve been in the UK for 10 years now. When I met my English husband 13 years ago at 19 I knew 0 English. We communicated using machine translation. So that’s when I started learning English. Fast forward to present day after immersion, living in an English speaking country, formal study, etc. and I’d say my writing and listening (understanding) are good, but my speaking and reading are still bad. I kind of gave up on trying to become fluent at this point.
I work in a bilingual workplace that offers language training to everyone. My colleagues are dedicated professionals and take learning seriously. However, some succeed more than others. There seems to be a lot of variation in language learning ability, even among smart hard-working people. Don’t feel bad if you’re struggling.
My advice is to focus your effort on the hard parts. If producing accurate sounds (phonemes) is difficult, try recording yourself and repeating the tough ones.
For reading, you might have a mismatch between the level of the material and your current ability. When i was beginning to learn my second language, i started with young adult books. Next easiest is a book that has been translated into the language you’re learning, preferably from your native language. Sometimes i would buy the same book in both languages and compare. Reading on your phone is also nice because you can usually click a word to see the definition.
For speaking, the best thing to do is talk, talk, talk. Don’t be afraid to make mistakes, and don’t always talk to the same person.
Good luck! Don’t get discouraged! I’ve been learning my second language for 42 years and i am still getting better.