can this be achieved through the current storenvy options or would I have to create a custom site for this or how. Please help :(
If you mean that you want to separate your product on your store page yes. Like to make a tab for shirts then one for widgets etc. Go to your admin page and click on the products tab at the top.
Once there you will see 2 tabs, click on the one that says manage collections.
On the top left is a tab that says add collection, click on it and from there you will be able to create categories. Name it anything you want to be and you're set.