A shared equity mortgage is an arrangement under which a mortgage lender and a borrower share ownership of a property. Shared equity mortgages can also occur when there are multiple buyers of a single property. The borrower must occupy the property.
You can use your home equity for purposes like renovating your home, which would eventually increase its overall value, eliminating your existing debts, and starting a business. You should stick to your needs and never use the amount you want.