Where do most beginners fail?

[Sean Dezoysa]

Sometimes it's good to look at a new venture from the angle of the most common causes of failure.Let's get the non-action/motivation ones out of the way. Most people fail anything due to not starting, not studying  enough to be competent or not having an initial plan. 

For the few remaining who take action, what have you noticed stalls them out? 

I'll post about myself a few years ago when I was underfunded and had to bail to retrain in a new profession.

1. Overestimating response rates and doing insufficient marketing to generate enough leads

2. Buyer's list too small or unreliable, causing my one potential deal to fall through.