Depo shot ??? HELP

Cora
Hey i got the depo shot 2 and a half months ago .. and I hate it !! First of all it made me pissed off at little things and get super emotional and want to break things and hurt things and all this crazy stuff but .. I don't have those side effects anymore .. I originally took it to stop bleeding but that only worked for the first month then the second I had bled for 17 days straight then it's starting to spot now so , from my experience I would not get this done if you wanna stop bleeding .... 
Now secondly I just found out it takes ages to get pregnant after it wares off .. if true please let me know if you've taken it and for how long .. and how long did it take to get pregnant. Again .. Or how long you think it'll take for mine to ware off .. I've only had 1 shot that's it ❗️
Please help me !!!