As i said before, it is important that other people do understand you!
It has nothing to do with accent, i met a Russian professor from the university of Kiev in the German and English language long time ago, and my German and English was far better then hers...
Her accent was awfull, and she didn't knew her verbs and variations of it very well.
But that was still in communistic times, so ok...
I lived as a child in Germany for 5 years, and when you learn it on the street as a child, that is the easiest and best way sometimes...
Besides that, my grand-grand-father was a German, the wife of one of my brothers is German, and i worked for over 20 years for German employers, so no wonder i speak German like Dutch.
English is a second language in the Netherlands anyway.
Here in the 1970's, i grew up with Indonesian youngsters, Indonesia was a former Dutch colony as you maybe know, so i speak their language to, even in 3 different dialects.
Further i am a martial arts specialist(later on of course) from my 8th year on, and i was going along with South-East Asians for many years, specially Chinese people from Hong Kong, so that is why i learned Cantonese Chinese and some Vietnamese to.
And how more you learn about languages, the easier it gets...
Further i worked in casino's for almost 20 years, and there are many people playing, from many countries, and i learned Turkish and some Marrocan Arabic and some Farsi from Iran/Persia.
The brother with German wife lives in Spain now for many years, and in the visits there i learned to speak Spanish, and besides that, i love Latin women, so it was neccesary for me to speak a decent Spanish, Italian is not very different from Spanish, so i can handle that to.
French is much the same to, but i must admitt, that is one of my weak points..., sadly enough i threw out that language at school when it was not neccesary anymore to follow those lessons, afterwards i regret that.
The same for Portuguese(sorry Rogerio...), it is related though to Spanish, but still so different to sometimes...aarrrg!
The most difficult languages are the real old ones, and some in Africa, although i do speak some Ghanese and Nigerian, which i picked up on the way of life...
In the casino years and on another job, i learned some Russian, but not to much, and more Yugoslavian, because i had collegues in the casino from there(when it was still one country in that time).
I don't speak any decent Scandinavian languages, but they are very similar to our language and English, so i can read most of it at least.
After so much years, i can only tell you, that i worked in all kinds of worlds, where most people never come, not even one of them, and then you pick up things, freely or just because you need it, and i travelled the world.
So after all, i can manage with languages, and i learn still quit easy(you have to be interested, that is the main thing!), and i am always willing to learn.
At last, my wife is from one of the former Dutch colonies at the Caribbean, and they do speak an own language to, which is called Papiamentu, which is a mix af several languages like Spanish, Portuguese, French Dutch and English, so i learned that language to...
As i said, you don't have to speak a language perfectly, but to make yourself understandable, that is the point!