anger problems with steriods

[dan18]

i am 18 yr old i have been on sterids on and off for 7 months i started on the tablets at first then quickly moved on to the injections recently i have been injecting sus 250 1m twice weekly and tri deca 300 1m twice weekly on my 6th week of the cycle my mood swings have become unbearable one min happy next feeling so low and depressed and angry my get up and go has gone very restless and Irritable all the time i just snap for the littlest thing and get violent sometimes please help what am i doing wrong i stopped taking the deca 3 weeks ago but my moods have not improved much what would be the corect dosage or a better steriod to take i am 5ft 10 and weigh 11 half stone any help would be greatly appreciated thanks