Unable to add any media, hyperlinks, and view in HTML

I am not able to insert any media or hyperlinks whatsoever…I am also unable to view my post in the “HTML” format, or as the new WordPress 3.5 now calls it the “Text” view. Please help me, I would like to be able to actually operate my blog. I was able to update it last night just fine, and ever since I updated to 3.5, I have had zero luck. I am doing nothing different from what I had previously been doing. I would like to figure this out. Please help.