I had the same issue when I started. I just applied slightly more pressure then I did at first.

You might want to try these.

https://www.musiciansfriend.com/accessories/everly-star-grip-guitar-pick-dozen/110780000004150?cntry=us&source=3WWRWXGP&gclid=EAIaIQobChMIuIOcl4Xo6QIVBK7ICh20rwASEAQYCSABEgKoLvD_BwE