I was looking at the photographs and noticed your watering attempt. The line of moist soil shows up very well. If the new soil underneath is still dry then the plant's roots will not grow into it. Nor will they grow through dry soil in an attempt to find moist soil on the other side.
My suggestion is to water the entire pot of soil so that all that soil becomes damp. Allow excess water to drain away and do not allow the pot or bag to sit in that water. Up to you how to do it but many of the group that is growing in those "plastic cloth" bags will let then sit on a grate over the saucer. The water can drip through and collect underneath the pot. Before long the soil becomes evenly moist.
Over the next week or more the plant will absorb what it needs plus evaporation will remove some from the soil. It could be a week, maybe two before more water is needed.
I mentioned reading the thread discussing how to properly water a pot of soil. Don't know if you looked for it yet but this is the link to the thread which was started about 8 years ago. I suggest you read all the way through and whenever you have any questions write them down. Probably a 99% chance that whatever you wanted to ask was already answered in one or more of the messages in the thread.
https://www.420magazine.com/community/threads/the-proper-way-to-water-a-potted-plant.266274/