Re: Getting very discouraged, need your help.
Simply give up this self defense nonsens idea in aikido, aikido has nothing to do with fighting. O sensei developed it for completly different reasons. Buy a gun if you feel not safe -- as Gracie do it once they are in Brasil LOL.
Aikido it is very serious stuff, you need to study deeper then searching for aikido application on the street. However if you like to kick ass poor loosers then go to MMA training.