My car has several issues that are all connected somehow.

So my car has started acting crazy.
My horn doesn’t work, the wipers only
work on high and the fluid will not
spray on the windshield, the outside
temp shows E degrees, you have to
manually turn the lights on instead of
leaving it on auto. If I leave it on auto
and try to brighten my lights , they go
off. When I lock the doors with remote
it does not beep. I got up a few days
later and everything was working
again. Then it stopped again. I feel like
it a loose wire or something. Any
ideas?