Putter lenght

[Number7]

Ok i almost just started flooding the Golf forum here.

My current situation:

I have a putter i actually like, its woman lenght (34") and i am considering cutting 2 inches off, cause i believe i have a better pendular swing with a shorter putter.

I have tried to grab it down the shaft a bit and feel it fits better, but grabbbing down give a wrong weithg distribution obv.

Im normal height 1m 80cm (like 5,12 US i think) so thats not the issue, but would like to hear if anyone has some experience in this area, and if i might make a mistake (since it cannot be reversed besides bying a new and different putter if im wrong)

For several years the putting have been my problem.
Not the feel, but cant hole anything within 10-20 feet compared as what im supposed to be able to.