Think about putting together a Continuing Education class in what ever you want to teach. Most Community Colleges are always looking for people to do Con-Ed classes. Its a GREAT place to get your feet wet and see if it fits.
You will be nervous but remember - your students are on your side - they WANT you to be a good teacher with a great personality and compassion.

Now - procrastination (I know this subject well); it can be overcome. As I think I mentioned before; learn to delegate - even if you think you can do it better yourself - it gives someone else a chance to prove themselves - it comes back to you as a blessing. Learning to delegate is vital to becoming a good leader.
Make lists - assign a time frame to each thing on the list(critical; use a timer if necessary) and STICK TO IT for at least two-three weeks. (Assign someone to remind you to do this and to be your cheerleader).You will break your bad habit and form a new one at the same time.
You CAN do this.