Shaving Tips?

Brittney • Brittney, 20, Aries. Mylifeasbrittney.com. ❤️
I'm not sure if anyone Else here will have this diagnosis, but I was born with cerebral palsy and as a result my muscles have always been tight. Particularly  my pelvis which makes spreading my legs hard & sometimes uncomfortable even. Shaving has always been hard in general and I usually use Nair ( the kind I use says its bikini line safe) which has been the easiest for me to shave effectively. But I'm wondering how to go about trimming / shaving my girl parts. Can anyone help?