Dont know about sharkinvesting.
As far as LBR is concerned. Even though she is somewhat well known in the trading world, I would not use her chatroom as anything more than a learning experience.
I suspect her calls are 50/50 in terms of w/l though not p&l. As with any "guru" there are nuances to their stuff. Since you are not them, why try and be their clone? Be an original. You will take the losers and avoid the winners. That's why you're in their chatroom. They take the trades most traders cant.
You can definitely learn from her experience over the last 20 years but in the end you must develop what works for you.
That is the only way you will develop trust to pull the trigger.
Dont be a sycophant. Not ever.