Should I be worried that I have my sun,moon,Venus,Uranus,Neptune in my 2nd house Sagittarius.
Seeing your entire chart would help. In general, when we have a stellium in a house, it means a lot of action will take place. Lots of events will relate to this house. This is not bad. When planets form favorable aspects, you'll have a lot of success, and when they square or oppose, etc., you may have some challenges. So take advantage of the good times, e.g. save money.
Now, looking at these important planets, it makes it very interesting.
Remember, the 2nd house is not just about finance. It is also about your perceived self-worth. E.g. you may feel that having beautiful objects/belongings, your value is higher.
The 2nd house shows how you make a living, and oh boy, you can make a living in so many ways. From art, to media and public relations, to air (Uranus) and maritime (Neptune) transportation. But I sense that the public eye and artistic/beautiful image prevails.
Your finances may have suffered with Neptune in Pisces squaring all these planets for the past years. As Saturn will enter Pisces in a few months, you may learn valuable lessons about saving, financial stability, etc. In the next 2.5 years you will learn to organize your finances better.
This lesson will help you for the rest of your life.