Not This	This Instead!
1. As a student who has studied abroad, I am very flexible.	1. When I studied abroad, X went wrong and when I coped by taking steps Y and Z, I realized how flexible I had become.
2. I have a passion for learning about other cultures and I will take that with me into my career.	2. Exploring A and B facets of [host] culture will improve my [skills] and make me a more effective C.
3. A Fulbright would allow me to decide about whether to go to grad school.	3. By spending a year Xing, I will learn Y, which will shape my career in Z field.
4. As a Fullbright scholar; I will be great!	4. LOL, no Fulbright unless you proofread your application.

Give concrete and specific examples to support claims you are making about yourself.
A sentence early in your Statement of grant Purpose that serves as a sort of thesis can help orient your readers: "I want to do [activity X] in [place Y] in order to [Z]," where all variables are concrete and specific.
Read your grant page very carefully and try to reflect the recommendations and requirements throughout your application (not only in your big essays)! Some English Teaching Awards, for example, are asked to note placement preferences in the first line of the Statement of Grant Purpose. Do not skip this step!
Have confidence in your plan: too many woulds, coulds, and hope-tos suggest that you are tentative about what you propose. This could perhaps jeopardize the possibility that you could maybe win.
Draw a clear connection between Fulbright and your future. You don't have to know what job title you'll have when you are 40, but you do have to be clear about how this experience will be a purposeful step toward a professional future - not as a way to postpone or avoid it.

What will you gain from your Fulbright year and what will you contribute? How will Fulbright move you closer to achieving your goals? How will you move Fulbright (and your host country community, and your field of study, if applicable) closer to achieving their goals?
Ambition (you've made excellent use of the resources available to you, and you want to achieve greatness!) and humility (you recognize your good fortune in having access to such resources, and that you won't achieve greatness alone!) Ambition lets us believe you can do the work, and humility helps you acknowledge that you'll face challenges along the way.
Your preparation/qualifications to do the work you propose (you are an experienced teacher/researcher/student and have excelled in that role!) and your future growth (you know you have much more to learn!)