What's the best thing to do ?
1-Open the door of my tent to lower the temperature and lose humidity.
2-Keep the heat at 80F and I keep the humidity in my tent at 70%.
It's a bit high temp but at this stage high temperatures aren't as bad. 70% humidity is also what you should be aiming for but since your soil is wet, you'll for sure have decent humidity for it to sprout. Additionally, I would keep my tent closed because it keeps a higher standard of cleanliness in your grow tent. Good luck on your grow.