new grower

hey guys im a new grower lookin for sum help i have a one inch plant that is starting to die and im about to invest heavily into things for indoor but i want to make sure i get all the right things for the right price and not just wasting my time and just having them die i get the basics and already have two grow rooms built just no lights or any of thoughs goodies i just want to get the right things and im hopein someone can help out

I am a first time grower too..if you want you can check my set up