serious problem, please help me!!!!!!!!

same thing to me, please fix this serious problem

You can try contacting support to see if there is anything they can do, but generally you won't get everything back. As you saw, you were only supposed to send the console and nothing else as you are not guaranteed to get all of that back. http://support.xbox.com/contact-us

I was previously using Internet Connection Sharing and it wasn't working, so i bridged my Wireless and Lan adapters, yes i did select both adapters and chose bridge. Which one is the best option? Any ideas?

This is happening to many people worldwide right now, unfortunately. I'm sorry you're experiencing this. This is a very common problem right now and it's a lot to do with services being overwhelmed at the moment. Due to worldly events, and many more people
being home right now than usual, and trying to play Xbox at the same time, the servers and services simply were not meant to handle this large of numbers at once. YouTube and Netflix and many other applications have also been overwhelmed in the past couple
of weeks and have had issues, and have had to lower bandwidth to try to keep services running. Please understand that this is the issue, and they are trying to work on it, but are struggling to keep up with demand. All Xbox services are overwhelmed right now
and this is a known issue with games not working, servers being down, downloads not completing, etc. Everything is affected. They have said they are trying to fix the issues and keep services running during these times, but just know that it is issues on Xbox's
end, it's not your Xbox. It's affecting everyone. Keep trying, that's all we can really do. If it does not work, you might simply have to wait this out a little longer and once work places and schools etc are open again, and lockdowns are lifted worldwide,
services will feel the relief and all systems will run normally again.

You should follow the official troubleshooter for the E105 error:

https://support.xbox.com/en-US/xbox-one/console/startup-error-solution

• To reset your console from the Xbox Startup Troubleshooter, use the D-pad and A button on
  your controller to select Reset this Xbox. When prompted, select Remove everything.