Today, in some countries, paying tax is mandatory but voting isn’t. That isn’t fair, or isn’t natural. If you’re paying your tax you
must vote, otherwise you’re paying an administration you did not choose. And then, while you may tell anybody else you’re against
the war, people like me won’t believe you, because we know your tax money are financing these trips into madness. I’ll leave the details aside. True, in a democracy you might end up paying anyway an administration you didn’t choose, but with your expressed vote, that administration takes a hint about its political (lack of) support.
With your tax pay, you are buying your democratic benefits, among those is your right to vote. If you don’t vote, you wasted a lot of your tax money if not all of them.
You should vote whomever is closest to your take on reality, check their websites, not necessarily those who have an obvious/institutional chance to win; this is a good exercise for the times to come, when you’ll vote daily, somewhere in the window of time left after the max. 6 hours of your daily work.