I will give you all my personal example, FWIW. Growing up, I never understood what was wrong, but several of my family members were depressive. Some of them also drank like fish, which didn't help the situation. I was a pretty anxious kid, I think.
As an adult, I realized I had a problem when my manic-depressive fiancé started spiraling into self-destruction. I was anxious all the time and couldn't seem to shut it off, endlessly plotting out these worse-case scenarios in my head. In the process of trying to get help for my fiancé, I ended up with a doctor who suggested a low dose of an anti-depressive targeted at anxiety. It was a huge help; I could think and be upset without being paralyzed. Now I'm more aware and recognize that when faced with great stress I get anxious. I exercise and take various vitamins and supplements that definitely help. But the prescription meds really work when I have had a serious crisis.
My doctor way back then told me, "The pills aren't to make you happy. You're right to be upset. But they help you function while you work through the problem."
No one else in my family would really recognize their need for or seek help. In the end, my dad died at 59 of a massive heart attack (I'm afraid the cigs and alcohol were damaging) and my sister at 63 from COPD and a lifetime of nicotine, alcohol, and drug abuse.