I found this encouraging and interesting video about 91-year old Mary Hobson who started learning Russian at the age of 56 and now is translating Russian writers: https://youtu.be/FD4WXQaEXNo.
In this video she gives some tips that are useful for learning other languages as well.
She's awesome! Thanks so much for posting this, Miriam. :-)
Here's a video of her speaking Russian:
That‘s great to have it confirmed by native speaker that she indeed reached an advanced level. Thanks!
I‘m glad that you liked it as a fellow learner. Yeah, especially because Russian is said to be difficult, it’s good to know that perseverance goes a long way.