I get gel nails every 3 weeks but for a while now I’ve been thinking about trying nail extensions. I asked the lady doing them and shes given me what I believe are acrylics, she created a slightly longer but much thicker nail using a glue and powder. They’re ok but I wanted longer, thinner nails I was thinking of the ones that they stick on and then cut down to size?! What are these called please so I’ll know for next time?