Focusing too much on grammar will only confuse and demotivate you.
You’ll end up thinking about all the dos and don’ts, and all those complicated rules instead of naturally saying a sentence like a native.
Did you know that only a small fraction of native English speakers know grammar rules… Yet, they are fluent in English.
They can read, speak and communicate pretty adequately.
FLUENCY is about being able to COMMUNICATE.
So…LET IT GO!
DON’T THINK TOO MUCH… JUST SPEAK