Female working in an old age home

Q: I am a student who works at a taxi call center and I sometimes have to book taxis for people who come and go from bars and night clubs. I have been questioning a lot if my job is haram but I am not sure if I am directly involved in their sins. Because of the uncertanity I decided to apply for a second job in the hopes of quiting this one. I applied for a job at a group home to help seniors and people with disabilities, but I have not taken the job yet as there are different views about a female person working in such settings. I applied for this job because I thought it would be rewarding to take care of someone in need. Is it okay to work there if I take care of women only or if I just help them around the house without having to see their awrah? I am really struggling to find a halal job.

Shellac

Q: Is it permissible to consume shellac which is typically being used as a glazing agent in sweets and chocolates?

Calamari

Q:

1. Is calamari makrooh or haraam in the Hanafi madhab?

2. If food has been touched or contaminated by calamari, will that make the food makrooh or haraam?

3. Also, if one has to eat calamari will he be sinful?