It’s been a month now since I planted my seeds. A couple weeks ago I I killed two of my plants by putting dish soap on them, but one has survived and is still growing. I know it’s probably small for being a month old but that’s because I live in the north in a very cloudy and rainy place and only use the sun outside. My question is what is wrong with my plant? It has these yellow spots on the older leaves and the tips are starting to turn white. Please help?