Honest opinion to not that lucky investor.

Hello, everyone! I need an honest opinion about the potential of this stock. I am really confused by all the BS I see in the market right now. What will happen to BigBear in the market going forward? I have lost almost everything on most of my other investments. A few months ago, I cautiously invested a few dollars in BigBear stock, and it's the only stock that has brought me over 300%. It always stays in the green. Should I invest more now and sell all my unsuccessful stocks at a loss to get some funds for further investment in BigBear?