I’d number each question group, then on the button have logic that determines which group to show next.
ie on Q1 answers high stress, button has logic that says “if drop down is “high” then go to Q3 else go to Q2”
for a better user experience you may want to evaluate this condition in a group on the page so that it is decided BEFORE the button click - that way there won’t be a logic decision lag on the button click.
Depending on how complex the form Qs are I may put the next button within each form question (normally I’d put 1 bottom at the bottom of a multi stepper form). That way you can keep the logic clean and easier to understand.