/diy/ - Do It Yourself

So the lights had an issue in my bathroom. I turned off the power to several of the switches in my circuit breaker because I wasnt sure which one was the problem. I fixed the light in my bathroom for the most part but here is the new problem.

Somehow after I switched all the circuits back to ON, the front lights wont come back on in the apartment. I tried flipping them all one by one on and off but it did nothing.

I have no idea what I did wrong, and I dont want to be charged a couple hundred for a quick fix, any suggestions?

The circuit breaker that covers the three bedrooms in my house just tripped this morning. I went to reset it in the basement but it would immediately trip again. Went around and unplugged everything in all the bedrooms and then was able to reset the circuit breaker.

The problem is, whenever i attempt to power on anything in one of the rooms it trips the breaker again. The other two rooms have no problems. Tried searching google but couldn't find anything covering my specific problem, hoping /diy/ can help.