I know this is hard for you, so hard and so unfair. You are being pressured into a situation/relationship that is supposed to be BETWEEN YOU AND JEHOVAH.
When our daughter was younger, she was being pressured by people in the congregation to be baptized. She was around 13-14 years old! And even though I was a zealous, totally indoctrinated dubbie, I did not like the pressure others put on her, it was none of their business!
She actually thanked me years later for not pressuring her, because she and I both knew she was not ready.
Baptism is the trigger that pulls the shun-gun. I will repeat: BAPTISM IS THE TRIGGER THAT PULLS THE SHUN-GUN...!!!
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And if you think the pressure is bad now, just wait till you are baptized!!!
Then you will have to live up to EXPECTATIONS and FULFILLMENT OF YOUR VOW/S TO JEHOVAH. Field service! Commenting at meetings! Demos, school assignments! Bible study! Setting an example!
Your "spiritual" parents will continue to coerce you and pressure you, It is the way of this religious cult. Do more! Do more! Can't you do more?? Why aren't you doing more?? You are baptized now! Remember your dedication to Jehovah!
The pressure is relentless! On and on it will go.
Your baptism will become a "bludgeon" with which to beat you! (figuratively speaking.)
I know you feel feel trapped.... I know this is hard.... But you have the "example of Jesus" and you can say that you want to be a footstep follower of Jesus, and that he waited until he was ready (30 years old!!) and you are feeling more pressured than ready.
Let your parents know that you love them, you don't mean to let them down, but a decision this important should happen because you love Jehovah and want to serve him. And if they say, "but don't you love Jehovah already and want to serve him?"
You can say, "You have taught me a lot about Jehovah and that the best way of life is to serve him. I want to make the best decisions regarding my relationship with Jehovah, and I just don't feel ready. It scares me. I don't want to disappoint you, but I want to make a mature decision about this. HONESTLY, RIGHT NOW I DON'T FEEL READY." (Repeat, repeat, repeat.....)
If they start going on about how baptism is a "protection" you can say that you believed it was about making a personal dedication to Jehovah, and having a relationship with him... and you really want to wait .... And scripturally, we have a model to follow closely.... and surely there isn't anything wrong with following Jesus' example? He wanted to be sure he did not bring reproach upon Jehovah. Say that you have given this much thought, and you need your parents to appreciate that this is YOUR decision.... and say that you *DON'T KNOW WHY* but in your gut/heart, you just don't feel ready.
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This is not easy... We are here to support and help you, and we do know how difficult this is for you.
No one should be pressured this way to be a member of a religion that will take everything away from you if you decide to leave!!