I took out 2 walls in my kitchen. Deleted 2 3way switches. Created a junction box in my crawl space. Flipped the power and everything worked. A few hours later I turned my garage light on and it tripped the breaker. It's the main line in from the breaker panel. It's also a 15 amp breaker. I've got 6 switches on the circuit. Should I change the breaker to a 20 amp?