learn to play the bass

I’ve never once in my life even touched the bass and for some reason or another, I want to learn to play it. I’m 21 and want to know if it’s hard? Is there a certain type of electric bass I need? Should I just go out and by one and practice with it a bit on my own? I’m also left handed, do I buy a left handed bass or just string the stings upside down? I have no idea. If anyone out there has any info, I’d greatly appreciate it.