I don't struggle with depression I enjoy it and the 27 voices in my head.
Music and philosophy, mainly, though in the past I've tried a few anti-depressants with varying degrees of success.
I just try to constantly stay busy, catching up with people, rehearsing with my musical projects, writing. If I can keep my mind firing on all cylinders, I don't have time to let depressing thoughts sneak in.
CBT/DBT, mindfulness meditation. Feeling Good: the new mood therapy by Dr. David D. Burns (maybe a little dated now but it's foundational to CBT and groundbreaking for it's time).
Personally, I just had some mild depression for a time as a teen. Never needed meds for it. Getting some breathing space away from my insanely religious parents helped, as did coming to terms with my sexual identity issues (yeah, that).
There's depression, and then there's depression. Some symptoms can arise out of situational factors, not only predetermined neurochemistry. Sometimes depression is hardwired in. Either way, talking helps..look for a thoughtful, sympathetic listener, some feedback.
If you believe your depressed mood relates to specific life experiences or situations, a relevant peer support group can be a great help.
If you are struggling with day to day coping, you should seriously consider seeing someone professionally. At least mention your concerns to your primary care doctor and seek a referral. Severe depression or even moderate but stubborn depression is often best treated with medication.
Roughly 40% of the public qualifies as clinically depressed at some point in life, so there really should be no shame about it. Ignoring it is not the answer.
Yes I have-chemical imbalance requires meds.