It is up to me which clothes I borrow and buy. That has nothing to do with me cosplaying, I wear that because I like it.
As to trying to look like Mana ... I know very well I am not Mana, nor do I have his face or nose or whatever. I haven't even said I wanted to be like him. This is a hobby, cosplay, it makes fun, what is wrong about it? I can't see where your problem is, really.
Even mmm will not make you Mana if don't look like him. I don't understand why you are trying so hard during many years. it is sad to see.