Hey!
Remember that when thereās a problem with the roots it takes 3-4 days for the plant to react visibly.
So donāt go doing everything at once or it could end up worse.
So if youāve overwatered.. youāll have to wait until the soil dries up a bit, that will give more oxygen flow in the roots theyāll breath better and be able to absorb the nutrients correctly. After seeing how she reacts I would consider start using veg nutrients to avoid running into nitrogen deficiency.
I would also take up mrs_larimarās advice on using 1ml of calmag Iām every feeding. It works great, sheāll love it and youāll avoid running into CalMag deficiencies in the future.
But remember giver her a few days between treatments to see how she reacts.
Good luck and happy Growing.