So this is my first plant, and i know i messed it up big time in the beginning alot because i had no experience nor too much knowledge of what i was doing, so in the beginning i over watered and over fertelized the plant, but ive been giving it just water now for about a month, from time to time only when it needs, to see if the plant would start growing right again. some of the older leaves have already wilted and fallen, but i see that the top leaves are still getting brown around the edges and eventually spreads to the whole leaf, is it because im doing something wrong still or u think it might be that i just started this plant badly in the beginning?