Experiment: 1 month, SPY ODTE closest to $X (up to 100), buy at specific time T_buy and sell at T_close constantly fixed over the time. Can alternate between put or a call. What are your suggestions for X, T_buy and T_close?

I am taking suggestions for these variables so if you have high confidence in your suggestions, please explain a bit why those values would work. Once set, I am not changing them. Hoping to start Monday. The only thing i can pick on a daily basis is whether i am buying a call or a put. Let's go! This will cost, at most 2100, since it is highly likely a $100 is always going to be the best bet.