yea I remember the beginning days, all those room checks, staring at the plants, and waking in the middle of the night to check even. The good news is - once you dial in your room, its pretty much set until a very bad day of heat or cold outside.
Do you use fan speed controllers? For the inline fans, I dial in the exhaust based on the temperature in the room, the intake fan should slowly bring in new fresh air (replace the CO2 the plants ate during lights on). The fresh air should not 'shock' the plants or cause disturbances in the air pressure - plants feel that stuff. So no very cold or very warm air exchanges. Fan speed controllers fine tune this exchange, one for intake, one for exhaust.
I try to keep the room in a ten degree range - 67 to 77 for example. When I deviated from the ten degree range, that is when the plants get stressed. Lights out, 65 to 70 - lights on 75 to 80 (stay away from above 80!) etc.
The key is designing an environment that is stable and consistent.
You said the grow tent was in your bed room, close yourself inside the tent after lights out, and check for light leakage from your bedroom lights.
DN