Howlite can help with insomnia, especially when due to an overactive mind. It can also help to teach patience and eliminate rage and uncontrolled anger. Howlite helps to release the binds of old emotions to present-life triggers.
Clear Quartz is a great amplifying crystal, both amplifying other crystals and raising your energy. It helps provide concentration and can also help unlock memories.
Lepidolite is a crystal to be used for the highest good and dissipates negativity. It helps with reducing stress and depression and can help you overcome obsessive thoughts and insomnia.