How to keep nails on??

Hi all I nite my nails like no other BUT if I am wearing nails I leave them alone. Anyways I've tried so many different glues and nothing holds.

I rough up my nails, I clean them, I even have the stuff to dehydrate them ECT sorry I just can't remember the names atm. I even have the blue light dryer.

What's some great glue that holds? Anyone know what stuff is best for doing acrylic nails at home? Thanks in advance.