Please correct my mistakes in this letter

Dear my 24 age,

The older I am, the time is limited. In the past, the time was slower when I was a child because I always wanted to grow up. However, the time lost is never found. The first day of university was more than five years ago that was similar to yesterday. Nevertheless, it is another world when I come back, which is no longer part of me. I believe that it is the price of maturity. I have to leave this small and safe world to reach out to wider spaces, which is more exotic things, but harsher and more tempting. The first job is not the best job or the longest job, but it affects my life. Thank you for my first challenges, they help I know that if I want to accomplish anything, the best way is that it should immediately start. What you will achieve, which is not as important as your previous efforts. At 24 age, I learned these lessons. At 24 age, I learned the way to believe in myself, no matter how the big world was.

Thank you for giving me another year of my life Thank you for all the experience of this past year, for time of success which always be happy memories and for time of failure which reminded me of my own weakness