It took me a long time to put the seed in the vase. Should I take any special care? Will I have any issues?

Fabric pots are the best! They allow lots of wonderful oxygen into the root system and are simply superb for that. What you want to do to make sure this little one does well is to spray water AROUND the plant, not directly at the spot where its coming out of the soil.... the roots are going to look for water and this encourages them to grow out and grow big. The biggest danger at this point is drowning your seedling so this will also help with that. Overwatering is the state of being constantly wet... make sure the soil is dry before giving them another drink. And don't add any nutes to her for another couple of weeks - autoflowers don't like/don't need nutes early in the game. Good luck! She's off to a great start!