Actually, it's been 13 days (today) since you asked but I don't get notifications either (intentionally) I just check back several times a day. Clearly, not everyone is willing to do that. Please check your profile to ensure that notifications are turned on and that the email you registered with is correct. Also check your email spam filter and white list growtutor.com to be safe. You can also check with your ISP if you should be getting notification emails and they aren't hitting your inbox.
I checked the board settings and everyone is *allowed* to subscribe to topics and forums so also check your subscriptions, you may have to click the "subscribe" link to forums and topics you want notification from. Next time you reply, use the "full editor" and check the "Notify me when a reply is posted" box to be sure. There is also a "subscribe forum/topic" link at the bottom of every forum and topic. There may also be a profile setting (in your user control panel) to subscribe by default. I'm not sure about that one.
I have high hopes too but traffic takes time and effort. I add content and when I don't have content to add I promote the site via social media, building a following there too. Hopefully it all translates to more traffic here, eventually. We did have a new member join but he never posted and I obviously can't force that either.
I know the feeling man, I went through back surgery myself. Glad to hear you're healing...