Do you seem to care less what others think as you age? I know that this is true for me and some of my friends It is truly admirable to be comfortable being yourself. You are who you are, try to embrace life and motivate others. Do not worry about offending others with your opinions. It is ok to feel the way you feel. Do not dwell on mistakes of the past, learn from them and move on. Make a plan and stick to it. If you want to accomplish something, get out of your own way and start the process of accomplishing that project. For example, if you spend time thinking about all of the reasons why you would fail at something, you can spend equal time thinking about why you would succeed.
Let me tell you about myself for a moment. I have Endometriosis and for many years have had to call into work frequently, miss classes and miss family events due to my illness. I was able to obtain my Associates Degree, and am a few assignments away from completing my Bachelors Degree. At one time a handful of years ago, I was fearful that I would not be able to hold a job due to the horrible symptoms of the disease. Instead of giving up and staying out of the workforce, I applied for a job that I really wanted and it all worked out. I was able to explain my illness to my co-workers and boss and have access to the restroom and be out sick when my symptoms were too serous to attend work.
During this time I attended classes and although I have had many operations over the past few years, I also have valuable education to be proud of. My grade point average certainly would have been higher if I was not sick most of the time. But it is not a perfect world.
If I can achieve part of my goal, you can too. Do not let life's trials and tribulations stop you from greatness.