Your plant is not over fed.
What is showing in the leaves now is a direct reflection of what was happening in the root zone 2 weeks ago..............giving extra cal/mag and expecting a cure in a few days will not happen.
Damaged leaves will stay damaged, but new growth should be ok.
Your plant looks generally very under fed with all nutrients, especially nitrogen, phosphorous and potassium, as well as having a major calcium deficiency.
Always apply supplements via the roots, foliar feeding can introduce negative issues, especially if the plan t is flowering.