Bad feelings are just signals: Lots of people never manage to understand the fact that bad feelings are signals sent by their minds in order to motivate them to do something. Just like hunger is a signal that shows that you need food emotions are signals that show you that you are in need of something.
Dealing with the root cause is the key: When most people feel bad they try to change their mood by doing something new, traveling, keeping themselves busy or even by using drugs. Bad moods intensify when you ignore them that way and the only way to end them to deal with the root cause. Think of a bad mood as a tree, if you want to get rid of it you have to cut the root instead of dealing with branches that will grow once again
1+1= 14: the presence of two bad emotions at the same time will dramatically increase the intensity of bad feelings so make sure you never allow problems to accumulate. For example loneliness alone might be bearable, stress alone is bearable but both together would be a killer combination.
The faster you respond the better you will feel: When your subconscious mind sends you signals in the form of bad feelings and you dont respond it will send you stronger signals later on. Thats how mild depression turns into severe depression and thats how prolonged stress ends into nervous breakdowns. In short, respond as soon as you get the message.
Look for signs of problems: Bad dreams, insomnia, bad moods that seem to come out of nowhere are all signs that you have been suppressing bad emotions instead of dealing with them. If those signs started to appear then take immediate action
Mood swings: Mood swings are nothing more than changes in your feelings that happen when you see something that quickly reminds you of one of your unsolved problems. If for example you wanted to lose weight but were doing nothing about then seeing a swimsuit model could trigger a mood swing
You dont have to solve the problem, you just have to start: Just like intense hunger is reduced to half the moment you start taking the first bite bad emotions are reduced to a great extent the minute you start taking actions. So you dont have to solve your problems in order to feel good, you just have to start solving them.