Obama enthusiasm

Barack Obama won the election with an overwhelming majority. This is of course his own big victory but I am sure it was

strongly anvantaged - advantage , but you can't use it as a verb. So ..it was definitely helped along - the failure of ...helped...

by the failure of the Republican Bush administration. Now, Obama has to show that he is truly able to deal with the big troubles of the USA:
1. economic crisis, 2.Iraq/Afghanistan, 3. energy/environment
These are problems nobody, no Democrat and no Republican, can solve in the next few months or years. I am

confinced - convinced
Obama will lead the US into the right direction, but I am not sure

about whether - just whether is enough (the construction to be sure about exists, too: i'm not sure about Obama

the American people are patient enough to stand behind Obama

e.g. is example given, I think you want especially here
after four years! Maybe it isn't possible to inspire the voters because all American troubles can not be solved in such a short period.
I am anxious

to - about is the right preposition here. Do you maybe want to say "excited about"-

the term in office of Obama and to the following election!