Write an SQL query

Hi, I just want one query. I want it to show the customer ID with the first name and last name, just like the table 'most tickets bought', instead I want it to have the total money spent by each customer including money spent on tickets as well as money spent on orders. For the orders, I have a table called orders with the order id and customer id, another called product orders with the order id, product id and ordered quantity and a table called products with product id and price. You will have to obtain the total spent by adding the total amount spent on tickets and the total money spent in orders, obtained by product price * ordered quantity for each customer. Please try to use simple sql language as I am a basic user and will not be able to understand the advanced functions in SQL.