it is definately to late to start a grow outside. so definately do it inside. it will smell but i can be controlled with air movement and ventilation. two really cheap ways to eliminate smell is if you make your own carbon filter (30$) or take a bucket and fill it with ona, water, and something that can absorb the liquid (like pearlite, sponges, liquid crystals. ect.) put a fan on the top of it blowing downwards toward the solution and drill alot of holes above the water level on the bucket. this is a really effective cheap way at controlling smell.(cost around 15$.) if theres anything else you need help with just ask. good luck
Ps. your friend told you wrong.
wabdizzy