Hi Daryl,
Welcome to our community! 
Try to create a new Physics Material in your Assets folder by clicking the right mouse button there. Select Physics Material. Increase the friction and add the material to the ground. Start with a rather high friction value so you will hopefully see a significant difference. Then tweak the value until you are happy with the result.
At the moment, the friction on the ground game object (and on all game objects) is 0, which means that the behavious is like ice.
Did adding a material with friction help you fix the issue?
See also:
- Forum User Guides : How to mark a topic as solved