I just opened an account at Robinhood because they give you one share, instead of TSLA I got a penny stock, COTY. and yes they do not charge a commission on options. I likely will NOT FUND my account.
I have similar mind management. While waiting for the signal, I will concentrate and be on full alert. After entering a trade, I will set SL & TP, and then reduce the concentration level and perhaps go away from my trading desk. But then, humans are humans. We don't follow our trade plan all the time.