I have seven month old GSP female, when I brought it some friends advised me to cut her tail, but I refused as I felt awkward about the idea, but now when I have started hunting, I feel as my pup's tail is bleeding at the tip by continuously wagging against weeds and bushes when she becomes birdy. What can I do, is there any time for me to cut it now or any cure? I will appreciate help.

it would be a Big deal for you to cut it now.it should have been cut at birth.the vet will have to do it now and it is maj. sugery.
just help keep it well and dr. it when it get injured.