It sounds like you are on the right track. In today's world, people consume so much content every day that it makes very difficult for businesses to break through that clutter and get their attention.

The big takeaway I think you should continue to focus on is making your message more relatable. If you want to get someone's attention you need to perfectly target their interests, pain points, wants, needs, lifestyle etc... and gear the message to where it feels like you are speaking directly to them.

Now this isn't always easy when you are dealing with lists because you have to be broad. However, one thing you can try to do is get really niche with your segments.

Take that list and try to isolate various groups so that you can hit them with a revised message that is more targeted to them. These "sub" segments could be based off of geographic area, gender, age etc.

With a better understanding of your offering and audience I can certainly provide better examples and other tips here if you would like to book a call!