If you do your own patent search without much experience, you probably will not find the prior art the patent examiner will find during searching. This will result in the rejection of your patent application if you file it on your own.
U.S. Patent and Trademark Office Director Kathi Vidal published a director’s blog post July 11 addressing the office’s current backlog of patent and trademark applications, which the latest USPTO data show to be 785,387 unexamined applications/25.6 months total pendency for patents and 14.5 months total pendency for trademarks.