A friend happened to call a few days later. He convinced me to schedule a doctor's appointment that day. Tip: The receptionist will find a slot the same day when you tell them you had to give your guns to a friend just in case. Be honest with them.
Sleep, light, medication,therapy, nutrition, hydration, friends you can call. Figuring it all out can be complex. Getting help is vital so keep looking until you find the help. Finding the right therapist may take a while.
It took me almost 10 years before I stopped having suicidal thoughts after my near miss. Another 5 years before I figured out one of the main reasons for what I was experiencing. Nearly 25 years total of the pain of depression because I figured I could handle it myself.
I was wrong.
Get the help.