I completely agree with Mr. Khadir and Mr. Arya. First, I would like to remind you of the saying, "The boss is always right," which is not 100% true but matters a lot for all of us, and you also have to be with it first.
Understanding Your Relationship with Your Boss
The very first thing you must understand is that you have to work with your boss, to whom you are directly responsible. To gain his confidence and trust and establish a good relationship should be your basic and first priorities. Making mistakes, like avoiding his call for a meeting, are what's bothering you here.
Whenever one feels or finds that the boss wants his assistant/junior to work in his own and old style, however, the same is required to be changed, which is a time demand too, or needs to be modernized, but they don't likely accept the changes. What a junior/assistant needs to do is accept this old style of the boss without objection and be very careful and conscious with it. By doing this, the junior/assistant can gain the trust and confidence of his/her boss. This confidence, trust, and good relationship help introduce new ideas to the boss and easily express why changes are mandatory or required with due respect to modernization. What you did is all self-explanatory.
Working Under Supervision
Second, you must not feel like the boss is keeping his eyes on your every single activity at work for whatever reason. Do your work sincerely and don't give any complaints with your work. The boss is always a boss and has every right to do so, but what you have to do is accept this and do your work. Try not to make mistakes.
Maintaining Good Relationships with Teammates
Third, you need to maintain a good relationship with your teammates. If they are saying that you are rude and act like a senior to them or treat them likewise, which evidently says there is a change required in you and your behavior. You may feel that you are not wrong, but still, you can make some changes in yourself that can help you deal with your teammates and establish a good relationship in the workplace.
Your Mistakes
- You never respond to your boss on his mail regarding his wish to meet you.
- You never respond to your HR manager.
- You are lacking the confidence and trust of your boss/seniors/teammates.
- Your teammates are complaining because you made them feel like you are rude and so on.
- You are over-conscious and too excited with your work, which is not required, or you need to be wise with these things.
- No action with your negative approach/thinking and lacking self-confidence (indicated by Mr. Khadir above).
Now let me remind you again what I said in my earlier response to you above: "When you realize you've made a mistake, make amends immediately. It is easier to eat crow while it is still warm." ~Dan Heist
Lastly, instead of working with your mistakes and learning, you are saying that there are no career opportunities for you. This is not a good thing and can cause you more harm than anything else can. You have to change your perception. This is just the beginning, and you must not lose heart like this.
Hope you now understand what you further have to do...