potting soil is like 6 bucks a bag.....

you don't need a huge budget for a first grow but you do need the right materials.

Think about it, you are trying to replicate an environment.

If you grow in shitty soil and get shitty results, are you going to want to do it again? What will you learn about maintaining an environment when you are constantly battling the problems that your shitty soil is causing.

Get the right stuff, transplant your plant and do it right the first time.

It's NOT just a weed that will grow under any conditions. It requires a stable, nurturing environment and constant attention if you want any sort of positive results.