Deflated for a while

Had two opposing experiences with a forum today.  The first was from someone who wanted to start a conversation with me.  Very positive, similar situation (but for much longer) and someone I feel I would like to get to know.  The second replied to a positive comment I had put on there and cut me down with one sentence leaving me feeling totally deflated.   I have now picked myself up, dusted myself down and worked out that I can succumb to railing at the world and complaining that my life isn't working out as expected or I can play the hand we've been dealt and make the best of everything.  Guess which one I'm going with!  Interesting though how people's responses can have such an impact.