One must consider Mental Aspect of Trading.
It is not only technical, that's why real trading different than paper trading. Everyone have different comfort level for "Maximum Trading Capital Used" and it increases slowly with time & experience only.
May be some successful trader[Technical/Fundamental trader] comfortable of trading 10lots nifty futures with some System/Technical Tools. If he want to increase the number of lots rapidly it will be a DISASTER with same system.
Because, Human Brain has certain 'Money (equivalent to Emotion) Handling Power'; it only increases with time and experiences. No one can increase his/her Emotion Handling Power overnight. If successful trader increases his/her Trading Amount more frequently, it will be a disaster any time: sooner or later.. but surely.
So, my humble request to newcomer,
You must not attract with the Idea 'earn-15-lacs-21-months-1-lot-minifty'.
Regards.