sounds like you need a tune-up
Possibly
There is a long black thing on your keys, shake your keys in the ignition and dash should light up .
Well, voltage wise, you have a lot going on when your are cranking over the engine, so some flutter, or shake is normal.
No, if it starts on its own without you turning the ignition switch then the ignition switch is defective.
Physically has a turning problem ? Try your spare key and still has the problem? Replace the ignition switch.
A car may shake when turning off the engine due to several reasons, including engine vibrations, uneven wear in engine mounts, or a faulty fuel or ignition system. When the engine stops suddenly, these vibrations can become more pronounced, leading to a noticeable shake. Additionally, issues with the exhaust system or a misfiring engine can also contribute to this phenomenon. If the shaking is severe or persistent, it’s advisable to have the vehicle inspected by a mechanic.
check to see if your wheel is rubbing up against something
have front suspension checked
Your ignition switch crapped on you
bad, you can break teeth of of your flywheel or your starter
You engine is probably misfiring. Check your ignition and fuel systems.
because you have crashed into somthing you pillok, try looking where you are going first