How can I minimize white space between sections on my online store?

[GlasgowSource]

Hi, looking to see if I can get some help with my store. I have tried everything to help reduce the white empty space between sections and products on my store, However there doesn’t seem to be any way to do it without editing the coding which I have no idea on what to edit or where to start in all honesty. If anyone could help with this it would be massively appreciated! Glasgowsource.com

[suyash1]

@GlasgowSource - can you please share the screenshot where you want to reduce the space?

[GlasgowSource]

Can you see all the space around this blue highlighter area. This is consistent throughout my site