I am a very scattered person, I find it hard to see a project through.
I don't think Saturn is the cause of you not being able to focus.Saturn is earthy & logical.
What is happening with your Moon or Mercury?
It could be Uranus conj MC, what else is going on with Uranus?
Neptune 10th is good for a career in healing, arts, movies. Even politics.
If you post a chart & be more specific it would help.
Having lots of fire in a chart can make for someone who's always starting things but not following through. It helps if the fire placements are balanced by earth, but if all you have in an earth sign is that Uranus/Neptune conjunction (if you have it and you're alive today, it can't be anywhere but Capricorn), those planets aren't exactly known for providing stick-to-itiveness.
If that Sun/Saturn conjunction is your only fire sign placement, it's probably something else. But it sounds like your most likely rising sign is Aries, which would be more fire, and if you have other fire sign planets, that bears it out.
The scatterbrained part to me is just pure Sagittarius. Producer Michael is my favorite example of a Sagittarius, look him up. Also Ozzy Osbourne is a classic Sag. That's just how they are.
But I would warn against Sun conjunct Saturn. I have a friend with this placement and it can lead to self-limiting beliefs.
Uranus on the MC to me says either working with technology OR many career disruptions. (Take things as they come)