Not even the legislators themselves can remember most of them. The easiest way to track a bill is online. Each bill entry will tell you exactly where in the process the proposal is. In the Statehouse, you can get a copy of any introduced bill at the Legislative Bill Center on the north side of the basement. Don't be nervous.
Most legislative committees make it easy.
If you have a lot to say, write it all out and give copies to the committee, but try to keep your testimony relatively short. Committee secretaries record attendance and set the order of testimony with a sign-in sheet either at the door or passed around the room as the meeting begins. All comments and questions are directed through the chair, so before answering, look to the lawmaker at the head of the table. But if you stick around for the whole meeting, you give legislators a chance to ask you a question they might not have thought of before. It's easier than you think, and the lawmakers welcome it more than you know.