Get in the habit now of accepting this and practice maintaining a positive attitude. Ask for more responsibility. Show your employer that you are ready to take on additional tasks and learn new skills. Volunteer to work on new projects or committees, especially those that will prepare you for the position you want. Your initiative will not go unnoticed.
Most organizations welcome a team player.
Whenever you are in the workplace, be aware of how other people are perceiving you. If not, think about why and work on those areas. Be prepared to take responsibility for your own actions and you can build a professional image that will benefit you throughout your career.