Re: total transformation, 2012's been a very bad year.
I can tell just from looking at the solar return chart the following (if you are sure the time of birth is correct):
The reason you've been having inner difficulties in 2012 is because the sun is in the 8th house. This is a complex house to deal with as it consists of psychological parts of yourself, sex (all the entanglements it brings with it), shared resources, secrets, transformation.
The sun is square jupiter. Jupiter represents education, philosophy, expansion. This can cause dissatisfaction with your progress regarding to education. Maybe you are overextending yourself?
Venus is also in the 8th house, so it could indicate deep, intense, complicated relationships.
Mercury is in the 8th house as well. You may be thinking about gloomy subjects.
Saturn is square pluto, so perhaps you are dealing with scarcity or limited resources. Also indicates problems with authority. This is one of those annoying tests from Saturn to see just how much you got. Don't be too hard on yourself though. We can be our own worst critics.
The aspect of Saturn opposing Uranus can cause a lot of restlessness to leave everything behind. I'd listen to Saturn in this case....Stay in school! This can be a very disruptive influence if you decide to break free.
The sun from the 8th house is square the moon from the 5th house. I can guess that psychological issues are affecting your self-expression, love affairs, women, children, and pleasure seeking or viceversa.... all these affect you, psychologically.
Please, don't think it's all doom and gloom. Even though there are stressful aspects here, you are still in control of your life. And these aspects are only temporary. It won't be too long before you will be in high spirits again!