I recently had an incident where my teacher asked me to choose between two options. I was a bit anxious and didn't know how to decide, so I asked my family and they got worried along with me.
Then I chose one first, but when my family called, I changed my mind and chose another. As a result things seemed to get complicated and disturbed other teachers who came to me to communicate.
Eventually the problem was solved and I wanted to switch back to my first choice, feeling like I was bothering the first teacher too much, and starting to agonize over whether or not the teacher would hate me, think I was unassertive, and be afraid of what the other teachers would think of me.
From your description, I can feel the emotional stress that comes with dealing with a dilemma. These things must have been important to you and needed careful consideration, so you talked to your family and your teachers gave advice. In the end, you stuck to your original choice, and that's something to be commended! Insisting on making your own decisions and taking responsibility for them is something you have to deal with as you grow up. But you were worried that because you changed your mind, your teacher would hate you for it.
First of all, when faced with an important choice, everyone agonizes and thinks before settling, just like you. The process is inevitably anxious because any choice means giving up another, and there are trade-offs, so we all get nervous about choices.
We can't control how others judge us. What others think is not your problem, the key is how you recognize and accept yourself. Teachers are involved in your choice, you can directly and sincerely express your gratitude: thank them for their support, there was hesitation in the middle, but you decided to stick to your own ideas, I hope your teachers understand that you will be responsible for your own choice.
Thirdly, beating yourself up because you feel like you're bothering your teachers and worrying about what they think, when it's really just your personal feelings. Getting stuck in this negative emotion can limit thinking and cloud judgment. Worrying about judgment is often the fear behind it, and understanding yourself requires a process of constant awareness and adjustment. Recommend the book "The Courage to be Hated", our life is not to live for others, go with the flow to be yourself, in order to live a more relaxed life.