Nail Biting and other things

Okay so I have a problem with biting my nails a lot, and also the skin around it. It's mostly anxiety, but I end up leaving a lot of torn skin. I wear fake nails to stop myself from biting both my nails and my skin, but i usually just DIY it. I want to get my nails professionally done because acrylics last longer and don't break. My mom told me that nail salons don't do your nails if you have an open sore. Is this true? And even if it isn't, should i wait until they heal to get my nails done?