you need to rest after the op - you must allow yourself to heal properly.
the degree will depend if you have an abdominal incision or if your hyst is done vaginally.
if you have an abdominal incision then yes you ought have someone responsible near by.
for your healing sake would it be possible for your son to go stay with your ex, so that you at least get some peace and quiet at home, at least for the first few days/week.
I can't say how I prepared for surgury because mine was an emergency, so I had no prep time at all.
As you are meeting with your doctor, write down a list of questions and take it with you.
leave spaces so you can jot down answers.
if s/he gives an answer you don't understand, do not be afraid to ask for an explanation.
The very best thing you can do is go into this knowing the answers to your questions.
If your reason is pre-cancerous cells due to hpv then I expect your cervix will be removed, this will then leave you with a vaginal cuff at the top of your vagina.
monthly spotting after removal of the cervix is unlikely and if it does occur it can commonly be treated with silver nitrate (literally a 30 second job in most cases)
ask about your ovaries.
keep them if you can.
the ovaries continue to produce female hormones and this can help protect against conditions such as osteoporisis later in life.