Well, the good news is that you definitely have the numbers and the experience to apply to M7 schools. How to plan it? Very simply: choose your schools (get advice if you aren’t sure). I would look at M& schools plus schools that are in Top 20 that have a specific strength in Tech (so Haas, Anderson, McCombs, Tepper, basically).
And well, then you just apply to as many schools as you can with the best application you can give! And that’s it. (Okay it's a little more complicated in practice… but you know). Anyhow, if you want to move, I suggest to get started NOW on your applications. The more time you give yourself, the better your essays will become.