Plymouth neon won't crank and start .

I have a question, so my dumbass decided
to power wash my engine. It's a 2001
Plymouth neon 2.0 and after I did it, it was
running good until I turned it off and turned
it back on . When it was on and I would step
on the gas it would hesitate and shake a lot
. The exhaust would make a weird and loud
noisy, it kinda sounded like a motorcycle .
After a while it stop making the noise and
the car would run good for like a mile or 2
and it would start shaking again and turn
off. It wouldn't start sometimes . So I left it
like that and the next day it there was no
start at all . When I looked at the engine
there were some wires that were bad and
could of got wet . When I put the key in the
ignition the air control valve gets really hot
and the car isn't even on I don't know if
that's normal ? The only thing I've moved
and replaced were the relays but it still
didn't work . I have no clue what's wrong
with it and I don't want to spend money on
things that matter . If you could advise me
on what might be the issue it would be a
good help . I need my car for school and I
can't afford a mechanic to fix it