People aren’t selfish. But we are all busy and struggling with innumerable challenges. Whenever you find yourself talking too much about your product, flip it around so you put the spotlight on your reader. What is your reader interested in? What problems can you help them solve?
Try this
Count how many times you use "we" vs. "you." Aim for at least a 3:1 ratio in favour of "you."
Ideas
Open a ten-minute sprint with Focus on the reader as your prompt.