Great that you’re reaching out!
If you’re after online conversion, the first step is to get traffic and then once they land on your site, you want them to stay and then convert.
I ran a quick analysis on your website and it looks like you are not ranking organically on Google nor are there any search traffic. As such,it looks like social media are your main source of traffic to your site?
If that’s the case, your way forward is to drive traffic from:
1. organic ranking on google (be on page 1)
2. paid ads on google
3. referral traffic from other sites i.e. expand your presence in other sites. This can include anything from Trademe to Facebook Market place or Warehouse The Market
4. Utilise Facebook groups that supports local businesses to promote (eg. Made In NZ group, Girls in Business groups etc)
In terms of conversion on your site, you need to look at your conversion path on the site. Look into your Google Analytics and look at buyer behaviour to understand the data there as to how long are they staying, main pages they view, which page do they leave from etc etc.
There is quite a lot to learn, but hopefully this directs you as to what to do next.
Hope this helps!