Conditional logic on dropdown

I am trying to set up my form so that if the value in one field has x value the form will automatically  make a selection in a drop-down field. For example if the value of a number field is less than 8 I'd like the value of the drop-down to automatically be selected and say “do it yourself”.

Please check this demo form I created: https://form.jotform.com/200778059354057

Is that what you're trying to achieve? The number has a total value to the Dropdown field.

To do that, please follow this guide: https://www.jotform.com/help/268-How-to-Insert-Text-or-Calculation-into-a-Field-Using-Conditional-Logic

Please try it and let us know if you need further help. 

You can also clone my demo form to check the condition further, here's a guide: https://www.jotform.com/help/42-How-to-Clone-an-Existing-Form-from-a-URL