Hi Vicki

I'm a beginner so no expert but I came across a YouTube video video once that suggested flattening the top nuckle of the pinky to enable you to put more pressure on the string. As it's an outside string there is no danger of muting an adjacent string.

I use this technique myself rather successfully. I tried to find the YouTube video again to point you the way but I'm sorry to say I can't find it again.

By the top knuckle I mean the knuckle next to the finger nail, just to clarify.

I hope this helps.

Joe