Perhaps you should learn to write smaller or only enter essential details. Dozens of others have managed for years using the small Pooley's log book. It is probably the most common in the UK. Has an instructor given you any help with how to fill it in?
A log book is a legal document and far to many people have the idea that you can reproduce it at will just because it doesn't look nice. ANO Art 79:
Detailed information about each flight during which the holder of the log acted either
as a member of the flight crew of an aircraft or for the purpose of qualifying for the
grant or renewal of a licence under this Order must be recorded in the log as soon as
reasonably practicable after the end of each flight.
So if you reproduce it, you are not complying with the spirit of the regulation!