LETTER OF ADVICE

Dear Ms. Hall,

It's my pleasure to give you some advice about choosing a new career.
I think that first you should create a list with things that you like and things that you dislike. You should also write down things that you do well and things that you don't do as well. Using these lists, you could check what kind of career is best for you.
For example, if you like teaching and children, you could work in a kindergarten; if you like reading books, you could work in a library; or if you like to help people and you are not afraid of the sight of blood, you could be a doctor.
I hope this advice is useful. If you need more help, I'm here.

Best regards,
Verónica

I have never heard of 'unkempt silence". I think it is more likely you are referring to an uncomfortable silence which is simply a descriptive term.

"I think that being a bus driver is boring" or simply "Being a bus driver is boring" would be more correct since you are referring to the job and not the person.