OP,
Rabbi Reisman asked in his navi shiur why does the mishnah berurah bring down in many places hamachmir tavo alav brachah. He answered that if you are machmir in all the cases you are a fool. hamachmir tavo alav brachah means you need to take on some chumras that’s when you get a bracha. you can choose your chumrahs. if you are machmir on everything, you are a fool.