Help with beginner indoor growing

Hey. I am looking to have 1 or 2 plants growing indoor. The problem is i am short on budget. What is the best way to grow indoor marijuana with the minimum expenses being made? What are the minimum equipment i MUST have to properly grow Marijuana?. I am looking at growing it in a shower in my basement, wich is being unused. Thanks any help would be appreciated.

Well The Cheapest You Can Go Is Go To Lowes or A Local Gardening Center Get A 6 buck bag of Miracle Grow without fertilizer, buy some fertiler spikes cost like 5 bucks to get the best quality of them, A Slyivan Grow Light 65 watt is like 4 bucks 120 is like 6 bucks go to a family dollars or dollar general and buy some $1 pots and last get a fan the cheapest u can find

check out my grow journal

i build the box for like 50 bucks and its simple as shit to do, and im growing 4 plants no problem

thanks for the advice