Your whole chart points to the idea of a writing/publishing career. Your sun conjunct the north node means that you have a very special talent for publishing, you stand out amongst those around you. You will put an exceptional amount of energy into your writing and publishing, with patience and persistence. All four angles in fixed signs echoes the idea of perseverance for your publishing energy. The sun's lord Venus in the tenth house in her home sign shows very strong communication skills which are artistic and graceful, which will be used in your career. Neptune trine sun echoes the idea of artistry in your daily publishing work. Sun trine Neptune/Mars 5th means that you easily begin new undertakings which are creative and have to do with your publishing. All of these are sextile to Jupiter, which means when you do creative work it gives you an opportunity to earn money.
I can see how you tend to start a lot of new projects, while following through is more difficult. Sun trine Mars gives you a lot of energy to start a new undertaking in publishing. Saturn, your day-to-day work, has problems with getting support from other people (Saturn square Jupiter). The Sun is opposite Pluto, meaning your daily energy for professional work is in conflict with your home and family life. Motherhood (Moon, 4th house) and working from home (Saturn/Uranus 4th) cause potential obstacles for earning money (Moon Opposite Mercury 8th, Saturn square Jupiter).