Rule no. 01: Target should be 0.5% to a maximum of 1% everyday.

Rule no. 02: Always use stop loss (SL)

Rule no. 03: Never change the SL value if once set.

Rule no. 03: Don't over trade, if you hit SL 2 times in a day, stop trading for that day because you have tomorrow also.

If you want to know SL percentage let me know in the comments.