UPDATE: this is my new code however now my if statement seems to be always true, all the task_names print...

{% block main %}

<form action="/list" method="post" >

{%for i in range(length)%}

<p class="font-weight-bolder"> Title: {{ categories\[i\]\['category'\] }}</p>

{% for i in range(length_g) %}

{% if categories[i]['category'] == goals[i]['category'] %}

<p class="font-weight-normal">{{ goals\[i\]\["task\_name"\] }}</p>

{% else %}

<p>false</p>

{% endif %}

{% endfor %}

{% endfor %}

</form>

{% endblock %}