Hmm well those are all good efforts for sure! It's just so difficult learning a language like that if you can't practise it everyday, of are in the country surrounded by it.
You should definitely keep it up imo. Learning those difficult languages is really good for the brain 🧠. From what I heard in russian, the meaning inbetween the words is even more difficuly to learn than individual words 🤔 

 Absolutely, I'm determined to persist with learning Russian, even if I don't achieve fluency, the mental exercise is incredibly beneficial for my brain. 

The Russian language has this unique ability to manipulate words creatively, which I think significantly contributes to their rich and profound literature. This linguistic artistry is fascinating and beautiful.