Mars squares Saturn and
Neptune in Cap. and Uranus in Sag.
and:
----As if that's not enough, Neptune conj. Cap. Asc.
In other words, your
Mars probably also squares your Ascendant in Capricorn?
Arian Maverick comes to the same conclusion I do. You can express yourself aggressively towards your siblings (most likely), but also to the outside world in general. Question is, why are your reactions so disruptive to yourself and others probably also.
Saturn, Neptune, Uranus conj. in the 12th house.
I dont know how far towards the Ascendant Saturn, Neptune and Uranus are, because if they are very close, within 5°, then you can count them to be in the 1st house.
But if they are further into the 12th house, the ruler of the Ascendant and the ruler of your 3rd house both in the 12th, shows me that as a very young child, you have most probably been in hospital, have had some traumatic experiences which frightened you so much, that you did not want to open your mouth anymore and probably choose to live in a dreamworld so you would not have to face the reality of what was happening to you. (I am not saying this is true, but very likely as I have so often seen, even with myself. As a baby I fell from the babytable, was operated and bumped into things myself until at 3, I got my first glasses. At 16 I could do without them again until recently of course, because of my age, I need them again.)
These experiences can subconsciously (12th house) still be within you and when triggered by occurences nowadays, cause you to become disorientated, very insecure and as you said, clumsy. Mars in Aries in the 3rd house, the house of the mind and square Saturn and Uranus can point to head injuries you may have had when you were a very small child, a baby even. You might not remember this. Mars in Aries points towards the head and often people with this position have migraines for instance or a tendency to bang their heads into something. Has anyone told you about a serious headinjury or heavy fall you might have had?
Mars being in the 3rd could point to a brother or sister who could have been very hard on you and maybe punched you a couple of times, you know how brothers are sometimes, and when very young, could have been jealous of their small baby brother. But maybe you just stumbled and had a nasty fall.
Maybe the problems you have are related to that.
With Saturn in the 12th you must be afraid of hospitals and doctors as well. Whereever Saturn is found in a chart, we find fear. (in the 9th, fear of traveling for instance).
Saturn in 12th shows also a person who needs to be left alone or needs to be alone from time to time.
Neptune conjunct the Ascendant always causes daydreaming and a sense of not knowing exactly who you are and what you should do.
Your second house of self worth must be ruled probably by Uranus and that planet in the 12th also shows a very negative selfimage, so the square to your Mars can be some sort of self-defensive reaction you developed when attacked, verbally or otherwise, by other people.
You see, by itself, a Mars in Aries in the 3rd actually shows a very sharp mind, so something must have happened (square Saturn and Uranus) to have dampened this energy and maybe caused ADD or something else which causes your problems. I would most certainly go to a neurologist and have yourself checked. You could be helped. Look at transiting Pluto, now probably conjunct your Asc. or in your 1st house, always a sign of dramatic personal changes. Hopefully they will be for the best!
Cheers, Starlink