I need to change / customize the Woocommerce checkout page.

I bought the theme about 2 days ago. Sale a LMS course on my site, but I need some changes on the checkout page. I use Woocommerce and another payment plugin called "Pagseguro", a lot used here in Brazil. I use a Woocommerce plugin and another Pagseguro plugin. I need to customize and change the Woocommerce and Pagseguro Checkout page. I need to custom down the fill fields on the checkout form. I need to delete all fields, leaving only the Name, mobile and email. I already tried tried changing by the option, Wp admin - wplms - misc. - removes extra checkout fields from woocommerce checkout. But it does not change all the fields I need. I have also tried using the Woocommerce plugin itself to change these fields, but this gives conflicts / errors with the Pagseguro plugin and does not finish the request. Web site: https://cursos.mapasparalicenciamento.com.br/finalizar-compra/