How can you make your projects successful? How can you successfully create a "Digital Twin"? Modeling can certainly be fun, but it can also be quite challenging. You want your first and every project to be successful, so you can justify continued work. Unfortunately, a simulation project is much more than simply building a model - the skills required for success go well beyond knowing a particular simulation tool. A 30-year veteran who has done hundreds of successful projects shares important insights to enable project success. He also shares some cautions and tips to help avoid common traps leading to failure and frustration.