One thing at the time

I was wondering about time and occupation.
Since I am living in a huge city, in the capital of Hungary, I noticed I have fewer time. Why is that? The day is still 24 hours, right? Only I have more things to do. And to became a teacher (that's a long procedure, my mom said only the first ten years is hard) is eating most of my time. For the other things I want to do (being with friends, going to dance, cinema, theater or museum) is so much that is impossible to fit each one of them in the day. Time is the same - but I want to do more.
Here in the 21st century the world is open, you have a giand window of it and you can live a thousand life if you want to (like in my childhood when I wanted to be an indian, at least Winnetou, but then I realized if I would be him, I would never could have a look at other cultures and times).
So we want everything. I want to travel everywhere.
But it's no use.
I feel alive sincerely when I do one and only one thing at a time. One book. One notebook. One movie. One friend to listen to. ONE thing at the time.
You can peep the other ten thousand life, wheter it is real or not - but you have to live only one.
And when I teach the kids how our ancestors had been living, peasants, craftsmasters and so on - I know I cannot show them that life was sooo slower than now.
It's amazing that we could live another hundred life - but we'd better choose one.
That's how it became real.