Do you make excuses because you feel like you are not good enough? And do you think making excuses can harm your professional career?

present your better performance where you don't have to make any excuses.
if there is such case where you have to make excuse instead of crossing it because of the situation at that time you can consider.
In my case i have to say i'm perfect in my work and i do not believe in words.
i believe in work.
thanks for question.

I will quote Kathy Caprino - The8 Most Damaging Excuses People Make For Their Unhappiness - "If you want something different in2013, stop making excuses.
Embrace the fact that you' re longing for something better means you are ready for change.
You deserve it, you’re ready, and it’s time." Excuses is like pain killer we take it to convince ourselves that we are not capable to do something or not ready yet, yet actually every one can do but few will.

A man who works with dignity, honesty and sincerity has no space for excuses.
A great Leader Mr.
Qaid Azam Muhammad Ali Jinnah Addressed his nation in the following words: "If you want to be a successful nation, the believe in work, work and work"

Yes, because many excuses spoil copyright and affect the future of career

Several excuses are always less convincing than one.
The day you take complete responsibility for yourself, the day you stop making any excuses, that's the day you start to the top.

If you claim that you know everything, you are not honest with yourself, but in spite of that, you have to make more effort before to make excuses.

I believe that if you have a good reason to excuse and the other side understand your reason then you are good enough, that means you know your capability and accordingly you can improve it, which is an added value for your professional career...