Django resubmits blank form after successful form

I'm new to Django and I'm trying to make a site where after a user inputs a start and end date, some data processing is done and then a result is displayed. I have this working, but after the form successfully completes and displays the data, a new POST and GET request run on the server and find no input. This is causing me problems with another form on the same project.

I think I may need to use redirect to avoid double form submission? However, I am trying to process data with the post request and display, and to my understanding, the redirect would take the user to a new url and not pass the processed data with it.

Thanks in advance!

Here is part of my index.html

<div class="search-container">
    <form action="{% url 'get_data' %}" method="post">
      {% csrf_token %}
      {{ timeform}}
      <input type="Submit" name="submit" value="Submit"/>
      
    </form>

And here is my forms.py

    from django import forms
    
    
    class PickTimesForm(forms.Form):
        start_date = forms.CharField()
        end_date = forms.CharField()

and here is views.py

def plot_data(request):
    context={}
    trackform = PickTrackForm()
    context["trackform"]=trackform

    if request.method == 'POST':
        timeform = PickTimesForm(request.POST)
        if timeform.is_valid():
            target_directory= '/home/bitnami/htdocs/projects/laserviz/data/'
            start_date = timeform.cleaned_data.get("start_date")
            end_date = timeform.cleaned_data.get("end_date")
            
            [data,lats,lons] = tf.getTracks(start_date,end_date,target_directory)
            [fig_html, track_info]= tf.makeMap(lons,lats)
            
            context["figure"]=fig_html
            context["track_info"]=track_info
            context["timeform"]=timeform
            context["start_date"]=start_date
            context["end_date"]=end_date
            context["data"]=data

            return render(request,'index.html',context)
    else:
        timeform = PickTimesForm()
        context['timeform']=timeform
    return render(request,'index.html',context)

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