I believe there are certain levels as to how we are capable of carrying ourselves through life. Some of us are more hesitant, shy, and reserved, while others are open, outgoing, energetic, and zestful. I think that as we go through life, we become really accustomed to never analyzing ourselves and how we feel day-to-day. If you feel down every day, then it's important to take a step back and look at what you're feeling exactly, and how it compares to everyone else. It is not normal to feel down and depressed every day, and if you do, then you should do assess yourself and look at the options available to you. 

I think that depression can be judged on a spectrum. Some of us are happy, some are doing sup-bar, and others struggle through every day. Here are the levels of deep-held disapproval or contentment with one's self that I think everyone can be judged to lie on, with 10 being the happiest and 0 being literally crippled because you're so emotionally empty.

Level 0 - Hospitalized, unable to move/think
Level 1- Hardly conscious, always laying down
Level 2- Sad, low energy, crouched down
Level 3- Down, unambitious, unexcited
Level 4- Apathetic but capable of moving with ease
Level 5- Able and open, but do so with reservations 
Level 6- Some zest for life, but not overly zestful
Level 7- Ambitious, but not overly enthusiastic
Level 8- Excited, looking forward to the future
Level 9- Thrilled to move forward, looking to the sky
Level 10- Overjoyed and absolutely in love with living

Most people, I would wager, are at about a 6. They're ok with life and have room to pursue their goals, but aren't overly energetic or excited by simply living. They would usually answer "pretty good" if you asked them how they are doing, and don't generally have a lot of problems with themselves.

Those who lie at level 5 and below are susceptible to daily depressive thoughts. They're a bit vulnerable and sensitive when it comes to their weaknesses being revealed, and try to live each day hiding their insecurities.

If you are at a 3 or below...you are probably majorly depressed. I would highly recommend getting some help. If merely your negative thoughts/emotions are seriously impacting your day, then it should be obvious that it's worth the effort to feel better day-by-day.

For those of you hovering at an 8 or above...I applaud you. I would gladly switch lives with you lol. Just know how many people would do anything to feel the way you do. Don't take it for granted...please.

I know I didn't go into much detail with any of the levels but if you want me to expand on them I'll do that. But it's a simple, understandable way of viewing how you are and where you could be.