Small Single Seat Aircraft I Intended To Design And Build My Small 2-3 Seat Experimental Jet Aircraft, Need Some Advice?

I intended to design and build my small 2-3 seat experimental jet aircraft, need some advice? - small single seat aircraft

22yrs old, interested in airplanes and flying for years, I'm an air-engineer, I am studying the aerodynamics and design for a long time, I design my own aircraft, build and fly under the rules of "experimental aircraft.
my drawing
Duration: 4 to 4.5 meters
Height: 1.50 -1.80 m
single-engine jet engine
Curb weight 400 kg = 600 kg max
Seat = 2-3
aleminum all alloys or composite construction.
Have a Nice size for a long time, and flight insurance.
conceived as the aerodynamic drag of the fuselage,
and I will use the profiles of NASA or aerodynamic most common types used.
Semi-monocoque, like the cells of modern aircraft.
I will calculate the design of the individual phases with math and test equipment. I am in a position to G-force test on the wings, in a position to establish the aircraft CG.
anyway after the design project, I'm going to the FAA with the name of a friend aerospace engineer. Design.it After approval is with the building.
What do you think of my project and what you're looking for?
Thanks