It cannot hurt to email again - apologise for persisting, but you would really appreciate some help, promise you won't impose too much on their time, if they are busy perhaps they could suggest another person(s), they can only say no and you will be no worse then before.

Counsellors are paid to help people surmount difficulties so I would not be shy about going back to her. She might even be able to intercede on your behalf.

If there a professional body that covers your work, a society of engineers or something - they might have a mentoring service for new entrants?