AsNoriuanswered grow question 3 years ago It's you. Not plant.
Two things can be done, but generally third option is the way. Believe me .
Mission Saving :
A. Increase humidity and give some foliar feed like Biobizz LeafCoat or just mix a bit 0.5 ml to liter of CalMag and 3ml/l Bioheaven.
Use that mix only one day. pH has to be set to 6.3.
B. Make sure that your water is dechlorinated, right pH. Give her dry out, when pot light and water her. Try to water outside zone of plant, for roots to expand. No feed, unless it's foliar.
You overcooked plant,calcium burned out, that's why pale colour. pH was wrong, that's why yellowing, she looks sad because of bad humidity too.
Third best option - start new and don't do mistakes. With good care from seed touching soil you are max two weeks away. This plant won't bring luck, other if you follow good pH, dechlorination, and good timing of watering - will surprise you a lot !
Good luck.