By the end of the second or third day you might just need the contents of your site to help yourself!

It's definitely a good way of promoting your website. However, I wouldn't try to do a bunch of forums. Maybe just focus on the top 1 - 3 forums in your niche. Make sure they allow you to link to your site in your signature. Post consistently, and provide value.

This is actually the method I used to jump start my entire Internet Marketing career and it proved to be very beneficial. I chose the 1 biggest forum in my niche, and focused on building my reputation in that forum. That was enough to get me going.

So I highly recommend that method!

YES DEFINITELY! Something that may help you is search "anxiety forums" and the first like 4 or 5 that come up, use those. This way your not wasting your whole day on forums. But forums are really important for backlinking and generating traffic. Really any social media would do but forums are one of the best ways!

Yep, you will get lot of traffic

And they don't take $60 for link in Signature. Its for banner

Forum posting definitely works. It's actually my primary method of marketing I always get results every single month. A good rule of thumb is to try to make 5 post a day for 30 days and monitor your results. It would be best to make all 5 post on the same board but if the activity is low, try making 2 or 3 post on one forum and a couple on another forum. I agree that you should not spread yourself across too many forums because it will be too time consuming to maintain them. Once you get the hang of it, you can increase the number of post you make everyday.