My avocado plant started losing its bottom leaves last week. I clipped them off so they wouldn’t waste energy and now it’s lost more leaves and only have two leaves left that are curling now as well and dying. I have no idea why it’s suddenly so unhappy. I use a very small amount of apple cider vinegar diluted in the water to stop the fungus growth and that worked for a very long time. I’m super worried because I’ve been working on this plant since April