I’m living in refugee camp in Belgium. I go to school in a week once a day it’s fixed and sometimes I go to the same city my own for shopping may be once in a week or in a month. The distance is 26 km so am I ‘kasiro safer) or I pray ordinary Namaz?

No you are not kaseerussafar.
If you travel 15 days in a month or 3/4 days in a week then you will be consider as kaseerusafar.