I (F27) want to build an agent to automate my tasks that I perform in my consultancy service. Need a guide on how to begin.

Well working in business consultancy for years, tech is something I was not much handy with. With growth of Ai tools, now I am able to use chatgpt and other such tools to enhance my emails and other write ups. But I want to build an agent that specifically does certain tasks like drafting reports from big excel sheets which I require and help me identify certain data to analyze further. Is there anyway that is possible?

Also I haven't done any coding apart from C++ from school days, but willing to learn some basics, since I see this as a in a long run.