Sensi Skunk Automatic - First Ever Grow

Completely underestimated airflow and temperature control. Rookie error definitely. Was going to plant into smaller pots then transplant but read its probably best to plant autos straight into the final pots so went ahead with that. Went for the biggest pots I could fit into the box. Using biobizz light mixture and added dolomite lime can't remember exactly how much but not loads had it lying around and thought I might as well just to be safe from acid build up in the soil. Biobizz's website said to run water through the soil to activate it about 24-48 hours before planting so did that. Let the soil dry out over a few days in the grow box cause didn't want to waterlog the roots. After the top of soil had dried out planted the seedlings and gave the smaller one to my mate as he wanted to try it after growing mushrooms. Since then been misting with water every day trying to be careful not to overwater. Been reading more into humidity and trying to increase it but kinda struggling think my extractor fan is a bit too powerful and sucks all the air through really quickly.