I lost power to half my house
If you replaced your breakers on an older home and did not upgrade the wiring leading to each outlet as well as the outlet...you have issues.  These breakers are designed for ground wires and older homes have a grounded box only. And in many cases an older home has copper wiring where as newer breakers are designed for aluminum.  So a few checks need to happen...no aluminum to copper outlets.  No copper outlets to aluminum wiring,  And no aluminum wiring to copper breakers...and visa versa.  Copper and aluminum will cause trips and fires if used together.  And a breaker designed for continuous ground placed in a home with no continuous ground will also trip and kill you and your family.  Hire a qualified electrician as you are putting your family in serious jeopardy!  Cities have regulations on electricity because homeowners are NOT QUALIFIED!