I would like to ask if there are more resources about portfolio management?

I was in a financial services company for 2 years. My cousin noticed that I
was being billed for some investment fees. I didn’t even realize how much my broker cost me each year. I didn’t know how to handle my finances, so my cousin took over. He gave me a good resource about free portfolio management software. My friend helped me decide to transfer my money to my Personal Capital. I still have financial help and am now saving fees. And you? Have you found good financial planners to manage your financial accounts?