Woocommerce mystile theme seo double title and random meta descriptions

Hi all.. I’m seriously about to throw my laptop against the wall!!

So i’ve tried almost everything that i’ve found online to fix the problem and yet nothing.. here is the problem

I’m using mystile theme and woocommerce. I’ve tried woocommerce seo all in one and I’ve also tried yoast seo.

When I search for a particular product in google, in the title I get the product name | sitenamesitename

and in the meta description I either get the excerpt or the navigation links from my page depending on the product. All the products were added the same

I’ve tried changing the force rewrite titles in yoast
My header php is <title><?php wp_title(”); ?></title>

If you solve this you’ll forever be my hero!!

The website is http://www.kiguonesies.com
but if you type in google say kigu onesies tiger you’ll see what I mean