This is a great question and the reality is that you can absolutely handle your investments on your own. In fact, some of the clients we work with still choose to do so; we just manage the overall financial plan for them while they execute their own investment strategy.
We are not a cookie-cutter organization, and we will work with our clients to create a relationship that helps them improve their financial position but also allows for a level of comfort. If that is you, then that works for us, too.
That said, many studies have been done in this area and, historically speaking, combining financial advice with professional portfolio management increases returns by roughly 3% annually. Over a ten-year time frame, that means that you pick up an extra 30% in returns by engaging a professional to handle the investments (net of fees, too!).