Babice,
Welcome to the forum....
3 words...location, location, location....

If you put it in you will receive/give more accurate advice on your specific needs, since each location has unique needs ...
You will find lots of friendly helpful gardeners here who really like to hear success stories...
Try to stick to the guidelines the first try so you get the concepts down...
It is very tempting when reading all the wild/wonderful ideas here to jump in, but get the basics down...then jump in

Good Luck !
Judi