My project has unfortunately dragged out to about 3 years due to a lack of commitment, and setbacks (such as building custom signals, and wanting a piece of custom rollingstock). It's only a 50km long branchline, with next to no towns. I am almost stuck in regards to the signals, and don't really want American/UK examples in the route.
I would thoroughly recommend limiting your project to a maximum of about 40kms, consisting of assets that are readily available and meet the requirements. The more you research, the easier it will be, and the less time it will take to get into a consistent pattern with creating it.
It's very easy to get that feeling that you're going to build a revolutionary project in next to no time, only to find that it will take up roughly 10 times what you initially estimated, and then you're back to the drawing board with all that time put to waste. We don't all just jump behind the wheel of a B double and drive 2000kms with no dramas, when we've never driven before. Computer games essentially follow the same formula. Take baby steps to begin with.
PS, I hope this post doesn't offend anybody.