retinoid

Say I have a 5,000 dollar account balance. I have a system that literally gives me a 90% chance of getting .5 pts (but only .5pts). I am seeking to get the bigger moves but the .5pts is to give me cushion. I use other highs for stops so they are roughly 1 point away. Does it make sense to trade 5 contracts, sell 3 of them when I get .5pts (for the cushion on the other 2 contracts) and keep the other 2 in for larger point moves? I have around a 10% chance of getting stopped out with a 1-1.5pt loss on ALL 5 contracts, a 90% chance of at least getting .5pts per contract. I was thinking of just scalping, but then I would miss larger moves and I would be risking 1-1.5 pts for ever .5 point. That doesn't make a whole lot of sense because god forbid it is only an 80% success rate, that would wipe out like 2-3pts if I did it ten times and I would make a net of like 2 points in the day with 10 trades. It just seems bleh. That is why I am trying to keep contracts in longer (like 2 contracts) but still scalp to cushion the larger potential for loss with keeping contracts in longer. Futures are much more complicated and tricky than stocks.