I do break boards due to my stompy feet from time to time.
What helped me out was riding Generator/BBS boards, 8.5, which tend to break less than for example PS Stix (in my experience). Back then I was riding chocolate / girl exclusively, which was also the time where I broke every single board I bought.
Also you may stop buying oldass boards from sale. I remember buying cheap QUASI boards, both 2 years laying around in my local Skateshop, and they broke like cornflakes within 1-2 days.
Of course generator boards are also not flawless and may break within a few seasons. its fucking wood. it tends to break when being bent. haven't tried flight decks yet, might also be an option.