Hi,
That might be because you didn't follow the proper structure for the View.

Group appropriate fields and try giving widgets for Many2many fields. Also use notebook pages for Many2one fields. 

Also, if you are adding chatter, add it after the form tag. Following these might give you a structured form

Regards

I am really really new to this, and was following the tutorials with these codes

in views.xml

 id="test_model_action" model="ir.actions.act_window">
     name="name">Test action
     name="res_model">test.model
     name="view_mode">tree,form

in menus.xml

 id="test_menu_root" name="Test">
     id="test_first_level_menu" name="First Level">
         id="test_model_menu_action" action="test_model_action"/>
    

The fields are scattered across the form. It does not appear as shown in the goal section.

Hi 

You can add the fields inside the form inside the tag.

Try with this code snippet for a form view

<record id="school_class_form_view" model="ir.ui.view">
   <field name="name">school.student.form</field>
   <field name="model">school.student</field>
   <field name="arch" type="xml">
       <form string="Student">
           <header>
                  <button name="action_confirm" type="object"
                           string="Confirm"
                           states="draft"/>
                   <field name="state" widget="statusbar"/>
           </header>
           <sheet>
               <group>
                   <group>
                       <field name="admn_code"/>
                       <field name="name"/>
                       <field name="address"/>
                       <field name="class_id"/>
                       <field name="division"/>
                   </group>
                   <group>
                       <field name="dob"/>
                       <field name="age"/>
                       <field name="admn_date"/>
                       <field name="officer_id"/>
                   </group>
               </group>
           </sheet>
           <div class="oe_chatter">
               <field name="message_follower_ids"/>
               <field name="activity_ids"/>
               <field name="message_ids"/>
           </div>
       </form>
   </field>
</record>

https://www.cybrosys.com/blog/basic-views-in-odoo-15#:~:text=Form%20View%20is%20used%20to,both%20structural%20and%20semantic%20components.

https://www.odoo.com/documentation/16.0/developer/reference/backend/views.html

Hope this Helps

Regards