Wanting to start riding

So I want to start riding a motorcycle, but I don't know how to go about it. I've been through a safety course and passed the written (got close to passing the riding portion, but a dude messed up in front of me and caused us both to fail), so I have some riding experience with the course, but that was a few years ago and I haven't been on a bike since. Looking for advice on what I should do. I was considering buying the bike and practicing where I could before taking an online written and finding a course at my local DMV to do the driving portion, but I'm not sure about that, I've also considered doing another safety course, but I don't want a repeat of last time with a different guy. Any serious input is appreciated