We all need to know a few little details about your grow b4 anyone can give you advice on how to improve. ex. what medium?, what light/ what nutes? etc.
That question is very arbitrary. There are WAY TOO many "tips" and "tricks" people do to get faster and better results in their "gardening."
My suggestion is that you read, read, and read some more. Oh, did I mention reading?
You have to know what you want before anyone can help you.
*What if you were growing hydro and I gave you advice for growing in soil...that wouldn't be helpful, would it?
Ask yourself what you want and what your goals are. Then research your answers on here and ask (specific) questions along the way.