First, congrats on moving your business to the next level. Setting up a legal entity like that is really important in order to keep growing.
Are you sure that an LLC is the best way to go, though? Depending on how your business is structured, there are other structures that might work better, which dovetails into my next point:
I strongly suggest talking to an accountant. Trying to handle everything yourself can be more trouble than it is worth.
That said, in an LLC, IIRC, the profit "flows through" the company structure, and to the partners. This means that the LLC does not "make" money, and does not pay taxes. You and your partner need to have an agreement that specifies how the profits are distributed.
I like regular incorporation, because even though the business owes taxes as well, in practical terms you can keep its profits so low as to not have to worry about that.
Again, though, I can't stress enough how important it is to get some expert advice from either an accountant or someone who knows the ropes. Once they understand what your goals are, they can give you targeted advice for how to minimize your tax burden and liability, and making it easy to focus on the business.