If your seat is not adjustable then you will need some form of ballast up front. I giant jug of water works well in my canoe. If the seat's adjustable then simply move it to the most forward position.

In my drifter I know it's balanced properly when the water is at my feet.

I use to solo out of my drifter quite a bit. I never got real good at the fishing out of it while on the move so I simply used it for transportation from one good bank spot to the next.