Hello Blaze30, welcome to Psych Central!
I'm sorry things are so rough right now. As for your questions, everyone is different. For some people it's a combination of medication and therapy. In therapy you can learn all sorts and build up a toolbox for those times when the depression really bites. For some people, depression is a one off and for others it is something we learn to cope with. Keep sharing.
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Pegasus
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“Everybody is a genius. But if you judge a fish by it's ability to climb a tree, it will live it's whole life believing that it is stupid.” - Albert Einstein