Most Helpful Guy
1. Break everything down into bite sized pieces. Small steps are better than no steps. If you're struggling to start, go smaller.
2. Get other people involved so you are accountable to meeting expectations of others besides yourself.
3. Set aside other goals in order to focus on the one goal that means the most and is most crucial for your success.1
Most Helpful Girl
By making them realistic and actually attainable.
It also helps that I make mini-goals along the main end-point I'm trying to work towards. That way, if I probably won't be able to reach the final stage for over a year or so, achieving the 'mini-goals' will be encouragement in itself. Enough to keep me motivated and not give up.2