Dear @Ajawo96,
Welcome back to Wefugees and thank you for reaching out to us again.
I am not a lawyer and we can not provide individual legal advice at this platform. Every case is different and many different aspects need to be taken into account.
Some thoughts on your case from my perspective: I agree that you should try to change your “Ausbildung” if you know already that you will suffer a lot and you are actually not able to do the job in the future. However, I can’t confirm that changing comes without any risk. As you mentioned already, you need to apply for the respective permission from the Ausländerbehörde again and present the confirmation that you actually have a new offer for an Ausbildung already. In the meantime, your asylum appeal might get rejected which would complicate the situation (you might not be issued a Duldung etc.).
I will link my colleague @mbeon-Éanna here - maybe he can add some advice and information. In any case, I highly recommend to get support in a refugee counseling office (or a counseling service like JMD) as well. I assume you have a lawyer for your asylum case already? Please discuss your issue with him/her, too.
All the best,
Meike