Looks like in the video you have a slow blinking light on the temp gauge when it is running - Low coolant level. Just get some DISTILLED Water for now to top it off.
After you get it running well, I'd recommend a coolant flush and replace the water pump, unless you know it was done. I think replacement every 3-5 years is the recommended interval. (search it)
Check your coolant cap in the trunk for a leak. Make sure you have the new style cap. (search it)
Again, congrats!