How to output a value from a post meta which contains multiple arrayed post meta keys - values

Question

I have a custom field fw_options which looks like below. I am trying to extract data such as gender, _books_read, other_skills (especially this) etc but I can't get my head around this type of custom field. I know how to output a custom field using get_post_meta( get_the_ID(), I just don't know how to extract data from this kind of format. I am a complete beginner in PHP but I'm really trying to understand.

My Code <span>$ <?php echo get_post_meta( get_the_ID(), 'fw_options', true ); ?></span>

Post Meta Key - fw_options Value (below)

  0 => 
  array (
    'gender' => 'male',
    'tag_line' => 'I like reading journals and thriller books,',
    '_books_read' => 12,
    'address' => '',
    'longitude' => '',
    'latitude' => '',
    'country' => 
    array (
      0 => 720,
    ),
    'other_skills' => 
    array (
      0 => 
      array (
        'other_skill' => 
        array (
          0 => '833',
        ),
        'value' => '80',
      ),
      1 => 
      array (
        'other_skill' => 
        array (
          0 => '507',
        ),
        'value' => '99',
      ),
      2 => 
      array (
        'other_skill' => 
        array (
          0 => '1169',
        ),
        'value' => '99',
      ),
    ),
    'current_books' => 
    array (
    ),
    'awards' => 
    array (
    ),
    'experience_level' => 
    array (
    ),
    'education_level' => 
    array (
    ),
    'banner_image' => 
    array (
    ),
    'resume' => 
    array (
    ),
    'tutorials' => 
    array (
    ),
    'english_level' => 'fluent',
    'reader_type' => 'medium',
  ),
)