Firewall settings help

I recently installed Comodo firewall. I am really confused. I don’t have much experience with firewalls. I was wondering if someone could link me to some settings for beginners or something. Also, what do I have to do in order to be able to run tracerouts and become pingable? I am trying to secure my pc the best I can. It is really difficult to do when you don’t know much about firewalls. I hope someone will be able to help me. Thanks for you time in replying. I am truely greatful.