Kentkun,
These rules have helped me I hope they will be helpful for you too.
If I will be in your shoes I will use initially 20 Cents stop loss from entry point, Once I am making money and Using a broker like IB I will move it to BE + COM, and follow the NERS rules, If rules says to out and you do not have 20 Cents loss NERS will take precedent on 20 Cents stop loss.
You can always enter the market, I am trading for 35 years I still doubt myself many times in a day.
Knowing risk is strength not a weakness in market. You will be fine.
Use 10 % of your risk capital on trades, and then gradually increase its size weekly or monthly.
If wrong decrease the sizes never increase, this rule is for day trading.
I do not average down on day trades.
I hope Nocona can give you better advice; Nocona and Gloe are great peoples.
Good luck.
Farooq