Hi guys! please I’m almost there!
I was able to make the thumbnails exactly as I wanted them by adding the following code to the theme.scss.liquid:
.product-single__thumbnails-product-template {
width: 120px !important;
height: 120px !important;
}
But then, the arrow went up on top of the image, I’m at the end of my rope, this got too advanced for me.
https://www.dropbox.com/s/qw4kptfz2vzm763/Arrow.png?dl=0
Please does anyone know how to put the arrow back where it was? 
@CluelessA
Sorry you are facing this issue, it would be my pleasure to help you.
Welcome to the Shopify community! 
Thanks for your good question.
Please share your site URL,
I will check out the issue and provide you a solution here.
Hi @KetanKumar ,
Thank you, I noticed you are famous here!
No sorries needed! I have fun figuring out how to alter the code myself, just, of course, I hit walls such as these.
My url is https://www.abysm-internal.com
Thank you really in advance,
@CluelessA
Thanks for your update and compliment
do you have fixed? also do you need same as attachment?
No I haven’t fixed it, sorry for the confusion.
The url I passed is the live site.
The code I wrote and the attachments are made on a duplicate site, I test it there before putting it on the live site.
When I use that code it looks like the right part of the image, but the arrow gets on top, and that’s what I don’t know how to fix.