Good luck to you! The first few weeks are the hardest. I'm going to be honest with you, what helped me immensely was not putting pressure on myself to quit smoking right away. I used both for a while, and after about a week, I realized I'd rather be vaping than smoking. It tastes better, and it hits better if you get the right equipment!
I'm not saying that's what you should do at all. Just that, if you can't do an immediate switch, it's not the end of the world, and you will find success in time, if you want to.