How do I create a unique page template with multiple sections?

Hi everyone,

We buy the theme Symmetry for our store and now Im trying to create a new page template for our about us page.

I’m doing this editing the code adding some sections (as galery), but what is happening that i have add 3x galery section, to make 3 different galeries, but when i update the sectings of one galery (like a picture), the other galery adds the picture too., basicly it seems that the diffent sections are the same…

Im doing this just creating a new page template using the existing sections from the theme. The code i have done is:

{% section ‘gallery.liquid’ %}
{% section ‘gallery.liquid’ %}
{% section ‘gallery.liquid’ %}
{% section ‘text-columns-with-images.liquid’ %}
{% section ‘gallery.liquid’ %}
{% section ‘gallery.liquid’ %}

Do i need to do something more? can u guys help me?