divine did a really good job of pointing out all the main things on your chart, so I feel that I can only reinterate a few things of which you need to be aware.
Firstly, social work will suit you - notice I said `will'. As one who has observed social workers diving in at the deep end and wanting to help others, when the person they need to be `helping' in the first instance is themselves....... social work will be an ideal outlet for you once you have settled a few things in your own life. You seem to be quite aware of what these are, too. One of the things which leaps out from your chart is your Neptune's opposition to Sun, Moon, Mars -
- that is one recipe for self-delusion!!
It is also a sign that you will tend to absorb the energy of others, so in order to effectively counsel others, you have to do some pretty hard-core work at establishing personal boundaries. Neptune clouds the boundaries between you and others, and when working closely with others you have to be careful to both not `take on' their stuff, and also to not `hand over' your own stuff to the people you are counselling. The irony is that what makes you an ideal counsellor - the neptune relationship with your very personal planets - also renders you `open' and vulnerable.
Even as a one-on-one counselor now, I still use painting, drawing, music performance as a way of entertaining and calming kids I work with.
For now, that is a wonderful way of working with others.
The self-doubt is also a Neptune influence, as well as the Saturn - which you have already mentioned.
Mercury - your MC ruler - is trining Venus, so using art & music in your work is a wonderful way to work with others, even adults.
The retrograde means you could benefit from having your own in-depth therapy, especially dealing with your early formative childhood years.
divine g's mentioning of working through your formative years is borne out by your Sun being square to your IC-MC axis. This means that until you have `settled' and made peace with your early years, you will not be able to fully access your MC, and so until then your Gemini Sun will not truly and fully `shine'.
Other than your Uranus conj ASC - which can be responsible for a lot of your creative `magic' and uniqueness, your Chiron placement is also interesting to me. It is in Gemini conj your DC, so the counselling of others one-to-one will `call' you, and maybe you need to be doing this eventually as an outcome of the personal growth work you must do in order to feel more at home in your life. Chiron is trining Jupiter, and this grants a unique way of expressing yourself. I have a feeling that you are only at the cusp of what you are capable of. Your chart is quite a beautiful one, but it brings challenges - as it must if you are to become the person you are capable of being.