Bookkeeping

Hi,

Why am I not able to secure even a bookkeeper job? Am i that understerrated here and outside or what? 

Is it possible that my ex-ceo's calling up hr and asking them not to hire me? Is this a contrivention and malfeasance possible? 

How is it possible if so? How will they know which companies that i have applied for online? 

Txs

Txs