Is this depression, I know nothing about it, but Im sure some people do here

• I self loathe
  I can become extremely,
  ~When I'm depressed I usually feel worthless,& hopeless
  I have thoughts of suicide,& urges to SH
  ~ I have contemplated suicide, & have had a plan. I've never acted on it thought
  When I am not depressed I'm
  ~ Irritable
  ~ (sometimes) Act on impulse K

• ~ lately been contemplating suicide
  ~ extremely sensitive to any criticism
  ~ paranoid & think people hate me/talk behind my back.
  ~ Also, about two months ago I couldn't' sleep, I would go to bed at 2:30, 3, or 4 in the morning. Now I'm usually tired
  ~Usually I won't have Motivation to anything. Though some days I will have a strong motivation to actually do something
  ~ My mood changes very quickly, usually I'm depressed.

FYI I was diagnosed with ADHD in 1st grade