There's a great thread going on and I don't want to hijack it so I thought I would put an offshoot here.

Someone posted >> I have two totally different opinions of myself.
One part thinks (knows) that I am a professional, very good at my job, highly favored by my boss, great with my students, goal oriented, proficient, organized, outgoing, fun, creative, friendly, loved by many, spiritual, and a great person all around.
The flip side tells me that I am not a good wife, I am not a good caregiver, I am not the best I can be, I am disappointed in how I look, Nobody likes me, Nobody really loves me
[...] The problem is that I (we) tend to dwell on what we are 'not' and don't pay enough attention to what we 'are'.

the question that occurred was, how does anyone know which one of these he/she is?
and granted that probably no one is 100% either A or B,
How to know how much of Side A is true, even if it's scary to believe it, much less assert it?
How much of Side B is really true, even if we don't want to / can't admit it?