The feelings you mention are completely normal - especially for those that plan to leave home in order to pursue their college educations.
I am more a family-orientated individual so I decided to stay home during university study. It all depends on who you are as an individual - living alone, with complete strangers or with family and friends?
Don't let these very minor feelings and uncertainty prevail over your overall objective - post secondary education that equips you with the knowledge necessary to contribute progressively to society.

All the best