First, welcome to a new world for you. Hope you learn to enjoy it as much as many of us do. Always use what works for you but practice learning how to stretch your fingers. In the skills section there is some exercises to help you loosen up your fingers. I use a therapeutic squeeze ball and Chinese steel therapeutic balls to help me strengthen my finger and improve co-ordination. Some famous guitar pickers have learned to compensate for missing fingers and many of us deal with arteritis or other limiting disabilities. But our love of the guitar and our love of learning how to pick has helped us overcome these things. Good luck.