I am not sure if you hear all the BS around the MA world that "BJJ is the best martial art for a real fight".
Yeah, I've heard that about BJJ and about Ninjutsu and about Wing Chun and about JKD and about Krav Maga and about Karate and about TKD, etc, etc. It's BS no matter which art is being held up as "the best." If you go in believing the hype of a perfect system you're always going to be disappointed. Every art has its strengths and weaknesses. (Except Ameri-Do-Te. )
I think I have offended you and I really did not mean to.
Nah. I have no vested interest in you liking BJJ. It's not for everyone, any more than TSD or any other art is. I was just pointing out that you're making some sweeping generalizations based on very limited experience and understanding. For the sake of correctly informing anyone else who is considering BJJ as an art I would propose some more accurate statements than what you were making:
BJJ has a sport aspect as well as a combative aspect.
Some schools focus more on the sport aspect, others on the combative side. It's important to know which you are getting. (BTW - if the place you were attending for a month truly only addressed the sportive side, that would be a major strike against it as a MMA gym. MMA fighters need to know how to defend against strikes while grappling.)
The guard can be a crucial tool for defending against strikes when an opponent puts you on your back, but you need to train it combatively to develop that tool. Most BJJ practitioners prefer to maintain the top position whenever possible in a real fight because the threat from punches is much, much less when you are on top.
BJJ takes time to get good at, just like anything else. Based on my own experience I think I could probably train someone to be effective in a fight with BJJ faster than almost any other unarmed art I've experienced. This does depend on effective teaching, however. If you are a beginner and you have a teacher that just shows a couple of advanced techniques with no context and then throws you to the sharks to get thrashed for the rest of the class session, then your progress will not be optimal.
When you first start out in BJJ, you will be sore. (I believe I warned you about that.) It does get better in time as your body adapts.
Patience and pain tolerance are useful attributes no matter what martial art you practice.
Anyway, there are no hard feelings and I hope you enjoy being back to your old art.