Don't sweat the blade breakage. Those are supposed to wear out. Nice job so far.
Usually blades break when they are forced when rounding a corner or trying to change the angle of the cut.
One saying I like is, "let the saw do the cutting". If you want to make a sharp turn, keep the saw
going up, and down but
without any forward pressure. Then gradually bend your wrist to change directions. Kind of like
"idling". Give it a try.