droopy leaves indicates overwatering or underwatering.
3 litter is not overwatering, but depending on how you watered it, because IMO in your stage is under watering?!?
You shouldn't have to water every 3 days. that just tells me your watering method is wrong, because it doesn't look like you have added perlite.
Allow the soil to dry up. Funny enough cannabis plants like to be on the dryer side VS the wet/moist soil
When you pick up the pot it should be super light and touch the bottom of the pot. This is how you know if you should water or not.
The light drys the soil from top and the first few inches dries in few days. That does not mean you need to water!
When you 100% sure your soil is dry and the bottom of the fabric is dry then you can water.
How to water a potted plant?
I use a milk jug = 1 Gallon/3.7L
I visualize and divide the gallon in 4 quarts. In a circular shape you want to water the outside ring close to the fabric pot.
after 15 minutes brake i water the same outside ring with another quart. Notice how the water penetration is now a lot faster and the fabric pot is getting wet. The soil should also sink leaving the plant at a higher level. Another 15 min break is taken after the 2nd watering. I smoke a joint.
You now have feed half a gallon to the outside ring. The 3rd and final quarter you want to water inside the ring you just created. Now you notice that the soil sinks to the bottom taking air and the plant with it.
If you notice roots are showing from top, then drop some more soil on top of the roots. This happen because you've dumped a lot of water on top of the soil and the soil has sank exposing the top roots. Why top roots, because you've been watering the wrong way and majority of your roots are on top.
You want the bottom of the fabric pot to be moist. this way when the top dries the roots will go searching to the bottom where the moist area is. Also, get something under the fabric pot so air can circulate at the bottom.
Root rot happens when the roots don't get access to air and by touching the bottom of the pot and getting a feeling on how heavy it is, you will always be safe to know that your soil is on the dryer side and that you are not overwatering.
Hope that helps