I'm 43 years old, a high school drop-out, and in the past my career path consisted mostly of waitressing and house cleaning.
A few years back I decided to go to college to get an Associates degree in IT. I knew very little about computers. It had only been a few years since I had even started using a computer. But, I wanted a career that was high in demand, and figured computers was something everyone used, and something that was not going to be phased out anytime soon.
I got my Associates and the company I work for transferred me to the Help Desk department. The people there were a lot younger than me and knew so much more. There was so much that I didn't know. I had already had low self-esteem, and not knowing so much made me feel even more stupid than I already felt.
I tried different techniques to boost my self-worth. One of which is the password I chose.
Even though I felt stupid, I would remind myself of my strengths, (i.e. I would automatically feel "I did this wrong and that wrong, I'm so stupid.", but then I would consciously tell myself "I did this and this and this right. I'm great, I'm smart, I'm probably the best new employee they ever had.").
One day, when I was doing this, I decided to change my password to TheBest!. This meant that every time I typed in my password, I would remind myself that I am a great person, probably one of the best new employees this company had.
So if I started criticizing myself, and forget to compliment myself, my password would remind me. It's really helped on some bad days :)