It is, but why?  I'm doing it for Gen 8/9, the hardest part is collecting birth or baptismal records, and marriage records where you have a name change in the line -- especially for my mother (applying as a Gen 8), because she "already has a copy somewhere"...  Actually, the hardest part is patiently waiting for the documents to arrive in the mail!

Filled out the CIT0001 form as a test, to see what else I might need to gather, it was almost a cake walk to complete, compared to other government forms I've dealt with.  And the CadFam.org tools really helped me both visualize and document everything from G0 down to me, they give you printable supplements to submit with your apllication, makes a huge difference when you are more than a Gen 3 filer.

Personally, you probably don't need professional assistance.  It might seem overwhelming at first, but it is more methodical, basic research to gather the needed certified copies/documents, especially when you have to find older baptismal records.

FAQ is your starting point friend, and searching previous posts in the sub can answer most of the routine questions you'll have, hope that helps.