Re: self-doubt and Mars-Neptune
I think it's quite revealing anyway...
For example you got only a weak sesquiquadrate with Sun in the 6th and Pluto... Sun is rather unaspected....
BUT... Look at where the MC is. Sun square MC, that is fairly significant in terms of what you do with your life. For what you aiming for in a career.
I think the Ascendant can be treated as more personal a point than the Sun even. If you condider what it signifies. Which is the point of Earthing of anything.
I believe it is significant anyway.