depo shot helpp

I got on the depo shot 3 months ago. Ever since my depression seems to of gotten bad to where I wouldn’t leave my room for days just to use the bathroom an eat something an I’ve just been really emotional about everything.

Is this normal for the first 3 months ? An when will my period be normal I have it for a week - two weeks straight an get off for 3-6 days an be right back on it.