If you are struggling to "write" stand-up comedy material that gets the big laughs...
Are you able to pinpoint what the issue is?
If so, let me know and I may be able to point you to an article that can help.
I found this forum from members who were providing links to my blog for comedians and found it very professional and helpful -- much more so than anything that is US based.
I can tell you in advance that there is a HUGE difference between trying to "write" funny from a piece of paper or word processor and developing stand-up comedy material that is designed to be expressed to an audience.
Like I said, just let me know and I will do what I can to share a bit about what I know when it comes to developing stand-up comedy material.