Too old to learn English?

Am I able to learn English properly? Will I ever be? Maybe another life. It is too late, way too late. Just read this to understand my current pessimism:

„Before puberty, certain maturation changes happen in your brain that makes it more difficult to learn language, makes it sort of almost impossible to get, to acquire the language to the point where you have no accent, but even difficulty in understanding the grammatical structures and acquiring vocabulary. And, as I say, this happens sometimes before puberty, different ages for different people, but maybe nine, ten, eleven isn't such a bad number.“

(from an interview called „How a Child's Ability to Learn Language Figures Into the Immigration Issue“, VOA pages)

I am afraid my puberty sort of vanished a long long time ago. So the only hope for improving my English could be my occasional immature behavior which could by an advantage in this case. Yep, it is late but on the other hand they say better late then never.

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IDIOM for today:

take with a pinch (grain) of salt = brát s rezervou

Oh girl, you're so naive! Don't believe everythink he tells you. Just take what he says with a pinch of salt. He surely doesn't have any yacht!

Should life be taken seriously or with a pinch of salt ? - I say, take life with a pinch (or grain) of salt, but remember that salt in your eye burns like crazy.

But be aware of cases when the expression "a pinch of salt" (špetka soli) has its real meaning:

These eggs have a strong flavour, and are best eaten hard boiled with a pinch of salt.