Oracle331 wrote:If someone could please please help so I don't have to buy another one that would be great.
I think it is very unlikely that you have done anything fatal to the RPi board itself. And if the cables worked before they will probably still work now.
More likely you have made some configuration change to the Operating System that has disabled output to your monitor. Alternatively you might have been unlucky and corrupted the content on the microSD card.
I suggest you simply re-install Raspbian. (This will of course lose any work or configuration changes you have made since the system was first installed.) Once you have a working system again perhaps we could explore what you meant by "I tried to boot it into open box mode" so that you can avoid making the same error again.