If you are ready to get a professional job and if you are in a place where you want to keep it, you will find that there are a number of things that you need to avoid. We're told to avoid the seven deadly sins in our life, and you will find that there are definitely things that you need to avoid as we work as well.
In the first place, remember that obsessive ambition is not something that people want to hear about. Even if you want to climb the corporate ladder, talking about it excessively can definitely give people the idea that you care more about your career than you do about the company. Do not give your company an excuse to blame this kind of unattractive behavior on you. If you want to make sure that you are in a place where you can move forward and where you are going to be able to get the right kind of job, this is behavior that you must avoid.
When you are in a place where you want to move forward in your workplace, also remember that you are part of a team. Even an organization that appreciates independence doesn't want to see you fail just because you could not do it in your own. This is where learning to delegate and where asking for help is going to be an important part of what you need to do. Take some time and think about what your options are going to be and how you can get the results that you are interested in. Remember that you are in a company for a reason!
Another thing that you need to remember is that you need to be able to give credit to others. Do not dream that stealing credit from others is going to be something that is going to be acceptable. It might be tempting and it might be something that even gets you promoted, but the thing to remember is that they are still there and there are people who know what you did. It is not a good place to be in and even if you only want to protect yourself, you will find that this is an important thing to avoid.
Finally, meet your deadlines. Most people would rather have mediocre work done on time rather than genius level work that comes in months too late. If your deadline looks like something that is going to be missed, take some time and make sure that you arrange to push it back.
If you want to get ahead at work, remember that in some cases, it is as much a matter of what you do not do as what you do.