Hi Osiris,
Welcome to susans!!
Depression can kill you and repression can give you acid reflux, back pain, jaw pain, hair loss, OCD, anxiety disorder, memory loss, and insomnia, among other fantastic agonies.
I understand that you are thinking of your parents and others close to you. When you think of them, however, don't forget to think about how they would feel if they lost you entirely. I'm not suggesting you run up to them right now and blurt it all out, but every now and then, try to picture yourself telling them. Maybe now and then you can feel them out to see what they think about transpeople in general.
You may also find some relief in finding a therapist or a support group, or even just one person that you can be open with. The important thing is to not allow yourself to bottle up your feelings to the point where it is damaging to you.
This is just my opinion. You have no need to rush into anything. Now that you come here, you will have access to a lot of information and experiences that will give you the opportunity to think through what you believe will work best for you.
Peace,
Rebis