Take it from me.... I'm a Psych major, and I lOVE IT!!!!! I have MDD, and have been suicidal, and psychosis. For me, it helps me to see things from two different perspectives, and people around us will benifit, because we have been through it...
It's possible, and it's so much fun to tell people... it makes some of them laugh... but there are two reasons to go into Psychology. One, for yourself, and Two to help others. If you have both, you'll have fun with it.