You have to work hard to achieve any kind of goals which you're looking forward to. Whether it's a small or big goals, if you fail to work hard, show high commitment and dedication towards it, you can never see them realised.
It's a good thing to start working on your small goals while getting ready for your bigger goals. It's going to be easier to realize your short term goals. Leaving short term goals to start pursing your big term goals is will make it more difficult. Everything is all about stages with how businesses are done.