What should my goal weight be?

coliecat8

So I've had an unhealthy perception of weight for a little while... I see everything as "fat". But that stops now!
I'm looking for advice of what my goal weight should be - I'm around 5'4", 135lbs (down from my highest of 140). I have muscle, but want a slim figure. Also, I have a pear-shaped body type.
Can anyone help me? The last thing I want is to go crazy and lose so much weight that it's unhealthy.
Thanks