What is the best training resource for acquiring my first customer? Cold called or emails/LinkedIn? Is there scripts anywhere?

Does anyone have a website that they have installed the webchat widget on that I can show my client as a demo of how it works? They get a ton of traffic per month and I think this could be a game changer for them! Thanks 🤩

What is the best training resource for acquiring my first customer? Cold called or emails/LinkedIn? Is there scripts anywhere?

"Nothing in the world can take the place of Persistence. Talent will not; nothing is more common than unsuccessful men with talent. Genius will not; unrewarded genius is almost a proverb. Education will not; the world is full of educated derelicts. The slogan 'Press On' has solved and always will solve the problems of the human race." —Calvin Coolidge

One of the lists I am working with is emails only. Somehow the data got corrupted, and we only have the emails. These emails go way back. the problem is some of them are old clients and some are old leads. What would you do with this list? What type of email would you send? And is there a way to make sure the emails are not current clients? Without looking at all 10k emails?