1, training will cost you your present job?
2. Does the boss have other personnel arrangements?
There is no room for development in your present job. You want to give up?
Your self-study exam is in line with your current working hours. If I lose my job, I wonder if it will affect the review of the self-study exam?
First of all, I want to support you. Many times, people will come up with many things. In other words, you think your boss wants you to train others to your level and then let you go. People came up with it. It didn't happen. What didn't happen would be scary, but it wasn't necessary. If I really let you go, think of the worst. If you can bear it, what are you afraid of?
Third, the boss has his own boss's arrangement. What you can do is to do your best and make the boss need you. Without you, you can't work smoothly in the technology you are engaged in. Even if others are as good as you, you still have your own advantages in character, personality and dealing with people. In other words, a person with both ability and political integrity will not be willing to let you leave, even if others are as good as you.
Third, your work development space is the key to your career. If you are sure that there is really no room for development, I don't think it is necessary to waste time. Maybe you can find a better job immediately after giving up him, and it can also fit in with your self-study review time. But if you are not sure, I think you can sit down and evaluate yourself 360 degrees, learn about your shortcomings from your boss, colleagues, subordinates and other company colleagues who are related to you, and then improve. The fewer questions, the easier it is to do a good job.
Finally, the self-taught exam is very good. After graduation, I was fed up with many phone calls asking me to study for an MBA. Your self-taught spirit is worth learning. I can share with you my experience in TTT in this place: Mr. Johnny Ma, who attended TTT training when I was a trainer and gave me a lot of support. At that time, I was also very nervous at work. I felt that I needed to recharge, so I went to participate in the training of trainers. Later, I learned a truth after attending Mr. Ma's class. People can create possibilities in time! Time is squeezed out by people. It depends on whether you want to study or not. You can study at any time. If not, you can adjust the working hours appropriately. If necessary, you can take time off to study before the exam.
The above suggestions may be helpful to you, or they may not be able to appease your worries, but I think it depends on people's efforts in many cases. I hope you can clear your mind as soon as possible and devote yourself to your work and study.