What do you think about my idea ?

Hello, I'm thinking of building a digital agency that helps entrepreneurs manage their projects, you may think it's an agency to manage social media accounts, but no. I turn the client's ideas into a real project, for example: a client comes and says I want to start training people to ride the surf and I want my brand to become among all competitors, I understand the idea and design this brand, build a website, and we manage accounts for you on social media, this will make the client relax from these things that will take him a lot of time and make him focus on training customers who come from online. This is the idea of my project and I can achieve it on the ground. What I currently lack is to invest some money in this. Are there any ideas or opinion?