Second guessing ?

Sometimes I walk away from a conversation and think to myself - "did I really just say that ?"  or  "I wonder, how did that sound to everyone else ?".  I guess I do that more often than I realized.  I think - gosh, God has so much work to do in me.  It would be so much easier if conversation just consisted of the written word.  I could write it all out - check it for mistakes, read it aloud and hear what I'm saying, change it around or edit it before anyone else saw it.  I could explain myself better - well, could I ?  I wouldn't have to worry about what my facial expression said to anyone else - wouldn't have to catch myself making a look or rolling my eyes.  I could stop myself from conversing all together - just write it out and decide it didn't need to be said and delete it.  I suppose then it wouldn't really be a conversation at all now would it ?