I will answer the questions, but first I would suggest that while you now have the opportunity, because you have not made the commitment of baptism, that you made a good investigation of what you will be committing to.
Most here are or have been affiliated with JWs in some way. I can assure you that the commitment is probably more than you now realize. Once you are baptized it will be much more difficult to leave voluntarily than you will find it is to join. Are you willing to give up all current friendships who are not JWs? Are you willing to lesson the commitment given to family members who are not JWs, and be willing to accept the belief that they will all be destroyed along with 6 billion others because they are not JWs? Are you willing to believe that JWs alone exclusively have the Truth, and be willing to accept that that is never to be questioned? Are you willing to accept that when God speaks, it is through the organization of JWs, and when the WT speaks it is as if God himself is speaking? For most JWs they are one in the same. Are you willing to accept the consequences that if down the line you find something that you cannot conscientiously agree with, that you will have no recourse or person to appeal to without repercussions?
Some here were life-long JWs who have had the difficult task of finding there way essentially alone. They investigated and found something that they could not in good conscience agree with, something they were taught as the Truth, and had to make a choice. This choice has consequences. Because of how JWs view all who are not JWs, they have had to go through the difficult task af rebuilding a whole new social circle of friends and family, because their whole social circle of JWs have nothing to do with them anymore.
Now is the time to investigate thoroughly what you are committing to, and not just from JW publications. If you wanted to find out about the reliability of a particular make of automobile, what do you think the manufacturer is going to tell you? the good or the bad?
Now to the questions.
1. Some have gotten baptized in around a year if they go through the study smoothly and start participating in field service as an unbaptized publisher
2. Through implication, the suggestion that you try to keep up with the national avg. which usually hovers aroung 10 hrs/mo. Many don't get that much, and many put down bogus hrs. because of the pressure to appear to be spiritual. There is also the constant message to see if you can "make room" to pioneer (50-70hrs/mo). These numbers are essentially a JW report card.
Hope this helps.