Pay attention to the loop of thoughts going through your head during the day. Focus on any thought you have about yourself or other people. If the thought is negative, try to reword it and add a positive spin: "No one at work understands me," becomes "I haven't made a connection at work with anyone...yet.
Reframing your self-talk can be an incredibly challenging task. Oftentimes, we are not even aware of all the negative thoughts we have in a day. Spend ten minutes a day trying to just notice your negative thoughts. Then, attempt to reframe negative thoughts into more positive ones. Then, work your way up until you spend all day monitoring your self-talk and taking control. Your entire perspective may change after successfully doing this exercise.