I'm sure there's a better place to ask this question but I do not know where it is when someone replies to one of my questions how do I reply to their answer? I am new to this forum and do not know the proper protocols so please forgive me.
You are always able to leave comments on your own posts (questions or answers) and on answers to your questions. Once you reach 50 rep, you'll be able to leave comments anywhere.
However, looking at the site activity just now, I see two questions:
Given that the identicons (the purple and white picture next to the user name underneath the questions) match, it appears that you have two user accounts; one guest account and one registered. Please consider merging them, which will allow you to edit, comment on any of your posts and accept an answer on your questions.
If you run into any trouble with merging the accounts, leave a comment on this post and I (or one of the other moderators) will try to help you out.