Dear Lemi,
sorry to hear about your difficult situation with your treatment and even more sorry to hear that your family is not helpful with this. I'm at the same time very touched by the fact that you see protecting your parents from unnecessary treatment costs as the highest priority.
It's never easy to feel confident when it comes to dental fear and dental treatment and this is hard even as an adult. In your case you have additional stress coming from the fact that you have to keep yourdental decisions in sync with your parents.
There is something in your posts that I would like to point out to show you things from a different perspective:
They said my teeth are so bad it will take awhile to heal. It’s funny, I told the lady that I was nervous and felt that something would go wrong. She said I’m being silly and stop worrying.
These are heavy words and absolutely inappropriate. This is so rude. I'm so sorry for this experience. No dentist ever should talk to you like this, no matter how old you are an what the state your teeth are. A dentist is a health care provider and his/her job is to help you maintain your oral health and you (or your parents) are paying for this services. Dentists behaving like this are one of the reasons dental fear exists in the first place. It makes me mad because you are so motivated and really try hard to take responsibility and this dentist just ruined that.
You also told her you were nervous, which is great - you communicated clearly and openly and offered her a possibility to put you at ease and she ruined that too.. did you know, that there are dentists out there who go through a special communication training to be able to put patiens at ease? And then there is this person who treats you like a set of teeth and ignores you worries.
The right way would be to explain to you, what is happening with your gums and how can you make sure to heal them as soon as possible to be ready for your crown soon. They should also listen to what your worries are and invest the extra minute to talk to you and put you at ease.
I know that you might not have the possibility to change dentists at the moment, but it's very important that you understand, that you haven't done anything wrong. On the contrary: you are brushing and flossing, trying to take the responsibility for your life, trying to protect your parents from high costs, you are amazing! Please keep this in mind, you are doing such a good job.
So what you really deserve is a kind caring dentist who will treat you nicely and support you on your way because that is what a dentist is supposed to do.
Please hold on and do not lose hope. I will keep my fingers crossed for you on Wednesday and I really wish you could change a practice and find someone who treats you with respect.
All the best for you and let us know how you are doing