It sounds like joining a prop firm wouldn't benefit your current situation. Looks like you have a good thing going. Most beginner traders don't have the experience to attract investors.
The main advantage of working for a prop trading are as follows:
- Access to firm capital and high leverage (for those firms that require deposits).
- Educational environment and support for new traders.
- Being accountable to risk parameters and risk management techniques (this one is key because most new traders lack the discipline to maintain their risk management systems).
Regards