Learners Grow

I need help so bad. I am so angry with my plant. I know it's my fault that is why I'm looking for assaisi please. there are people with 300w CFLs that do not train or give nutes and get 100g whereas I gave good nutes and looked after it will mild training and got 12g!!!!! I spent over £200! I could have bought more weed than I harvested. also the weed is shit! it stinks like grass and is not frosty. I smoke a tiny bit and didn't even get gight. I'm really sad and really want to get better. I've got new seeds on the way for 26L Coco coir filled fabric pots. PLEASE HELP! my root growth was devestating in the last grow! and the plant stems were so so so tiny and the buds grew slow and not frosty. I've tried to fix all problems it's too hot in my grow room and I'm getting intake and outake fan and more movement fans. I've got a brand new 600w hps and Coco coir for root growth and fabric pots for root growth. I'm gonna be using call mag bio grow bio bloom and top max. I might buy root juice by bio buzz and alg a magic for immune system. I believe the pH and ppm od my water is an issue so Im buying a ppm meter and pH meter and buying bottled water. if I have to a RO FILTER. the temp is deffo an issue in flower and need to sort that. BUT 12G IM NOT HAPPY WITH.