Also, sometimes I watch a TV series in which police is trying to solve a 50 years old closed case. What I find interesting is how sad the life of that people are, never a joke, sharp sound, short sentences, never a smile. Perhaps, it is a mirror of a society. In Spain the eyes of people are full of life, the doom is outside of our frontiers (or so I think).
"I'm still not great at English but I surely improved over 15 years": => (I have surely improved) or: I haven't mastered English yet, but I am sure I have improved a lot in the last 15 years.
Without to mention how trivial is to go back in the learning process as long as you stop talking / listening for a couple of weeks… => To top it all, if you stop talking/listening for a couple of weeks you begin going backward in the learning process.
My long term hope is that soon or later => My long term hope is that sooner or later.
Another reason I find myself. => Another reason why I find myself.
NEVER learn a new word without learning what is its sound. => (how it sounds)