Hi brookeashley,
I too am a Leo with a strong contact between Sun and Saturn (conjuction).
In my case, this aspect played out in the following way:
I had no father and no knowledge of who he was until I was about 24.
I have a strong sense of duty and responsibility up to the point where you could say that I burden myself with responsibility for myself and others. It also affects my self-confidence and I'm somewhat of a late bloomer.
How is this aspect affecting you?
In my experience people who have Sun-Saturn contact have some sort of difficulties with their fathers (absence, lack of interest from him, father imposing too much responsibility...) and their self-esteem could be more or less seriously affected by it (especially if Virgo is prominent in their chart, I have a Virgo Moon).
Your Sun is also affected by two strong aspects:
conjuction with Chrion and a squre with Pluto.
I'm sure you read a lot on the subject of the Sun in the 12th house, so I'll point out certain peculiarities.
I mentioned conjuction Sun-Chrion, because childhood trauma can be further underline with this placement, like bullying.
The Sun-Pluto contact is always about being in control and it can go further and reach manipulative behavior. It gives intense natures, even when the placement itself waters it down a bit. Just because you do not use the same way to express the intensity of your nature as some other people do, it doesn't mean that it's not there. doesn't not mean that it's not there. It can even get pushed on a subconscious level, making your actions difficult to control, leading to negative thought patterns and (self)destructive behaviors. Again, this aspect too speaks of the possibility for some kind of abuse.
When all of this is happening in the 12th house, there's a lot of work to be done to bring to light and become aware of the patterns that were created at some point in your childhood, but that can prove to be detrimental further in life.
It is a house of all that is hidden (secrets, lies, sub-conscience, hidden enemies...) and all that can hide you (hospitals, prisons...), that's why it is best to try to bring things into the light where you can see them what they really are.
People with these placements who get a rug pulled from under their feet, often do not accept that certain patterns of thought and behavior have led to this, they just don't "see" it.
With Sun in the 12th there is a tendency to accept the position of a victim, feel powerless, sacrifice for others and lose sight of oneself. This is another extreme on the spectrum.
There is always a possibility to use the aspects for the better.
Sun in the 12th gives a possibility for rebirth, therapy, counseling... and once you overcome your own problems you can help others and have a healthy attitude towards yourself. The energy of Pluto can also be used for rebirth, therapy... once the person overcomes its lower tendencies (control, manipulation). Chiron is a great teacher and we can always help others more with the problems we have than ourselves. So, it's all about perspective and hard work.
Generally speaking, there are certain themes in your chart that keep showing up (and I wander how they are manifested in your life): over-responsibility, feeling of duty, (self)destructive patterns...
Hope this helps, although I'd have more questions to ask you