when the comedy stops

i haven't seriously written comedy in over a year. you may wonder why, well, this may shock some but i really struggle with whether or not the stuff i write is funny.  yep, i have weak confidence when in truth my confidence should be sky high but sadly that isn't the case at this juncture of my life.  I trust God will give me confidence that i don't have now.  then, there is the whole mental block thing were i get to a certain point and don't know where to go with things. an example, of this is a thing i have dubbed "my conspiracy."  I have a couple ideas for this, jfk (two paragraphs, beg & ending), humpty dumpty (no paragraphs), a happy home (i got that idea in a worship service, no paragraphs), and infusing verses from proverbs (a recent idea) into the storyline. the bible verse thing it has to be funny or have a point in the story i'm just not going to quote bible verses just because i can, since its comedy not a sermon.  frankly, if you want to be preached at go to church.  There could be other obvious things like aliens or bigfoot but my goal is to do things with this that are not common (see happy home) and that are very original.  I am not really frustrated in a sense because its not like i'm going to be doing an open mic somewhere soon.  however, in another sense it is frustrating because i believe i am very funny and know that i can do this both writing and performing comedy since i have done it in the past (improv comedy at my old church) whether its my conspiracy or something else i am trying to write because i know i have a gift and i don't want to squander it.  when i write comedy my goal is get my sarcasm, dry humor, and my ability to be a 'smartass' on paper.  this sounds hard and it is, trust me. in addition, i rarely post comedy on this site because as far as i can tell there is no way for me to copyright it, since i don't want to turn on the tv someday and see something i have written being performed by somebody else.