If you invest more then there is a chance that you can also lose even more if markets go down. So don't think only in one direction when you want to make an investment decision but you also need to consider a risk factor as well.
Don't believe on these signal sellers because if they can find so accurate signal then most likely they will never sell those singles to you instead they will be busy in making money from those signals but they know that they can't do it so they use this method of selling signals to others to make money. Most of the time they just copy and paste singles from other groups. It is actually wasting your time and money.
Man, I don't look into these trading signals so far in my side-trading although it might seem unusual to say that. I mainly just base on the generality on how the line of the price in the chart is going lately. I am quite surprised that some of these trading signals were just meant to be just a deceive into the eyes. Lol, but I might need to be more technical in my trading soon.