I primarily trade price action and observe a few key areas for potential entries (e.g., O/N high/low, prior day high/low, gap, etc.).
So if you look at candle by candle returns, what is the size of the opportunity? Like could you make 0.20%? What is the probability of success dictated by your strategy?
A good way to do this is to download ohlc data (for whatever period you trade) and then calculate average returns, the range of returns (max, min), and conduct a subsequent returns analysis. Price is a lagging indicator. I'd recommend building a theory that explains why the opportunity for someone trading in and out of a contract is available in the first place (as opposed to buying and holding through your period).