history: A time I really felt I had made an achievement was when I was promoted to a Team Leader at work. When I was promoted to Team Leader at work_comma_ I really felt like all my hard work had paid off_comma_ to some extent_comma_ and I gave myself a little pat on the back.
current: You must have really proud of yourself. Its good to acknowledge your own achievements from time to time.
next: Yes, and it can be difficult at times to move up at places, especially when there are many other long timers there!