u/Animark12

Got this from eBay. Just want to make sure. Also can I open it without loosing its value?

I have to change the 20 amp breaker on number 17 because it keeps tripping. I called several electricians and they have said it is likely the breaker since the house is 10 years old. It’s such a small job that I’m finding difficultly for anyone to come to my house and do it. I have changed outlets, light fixtures, light switches, etc. So I believe I can do it. Can you guide me on which breaker to get and how to safely change it? Thanks.