This is not the best time to be asking if you are stressed. 1. No one can possibly say becuase they cannot see where the leak is coming from. 2. not possible to say. 3. not possible to say.

The pictures show nothing at all, only that you are leaking oil. The CV joint is easy to fix but it is not likley to break anytime soon if you drive it carefully. That can wait. The oil leak can be rectified by replacing any lost oil, but the pictures dont show where the leak is coming from.
If this occurred since the timeing belt was done, then take it back to the person who did the timing belt.

Other than that, you will need to find the source of the leak. and take a picture of that area so people can see the source of the issue.