1)
Why does it say "va'Ani"?
1.
Radak, Malbim: As long as I am alive, I constantly pray to You.
2)
Why does it say "Tefilasi Sekademeka"?
1.
Radak: My prayer precedes every matter that I engage in.
2.
Malbim: The first matter that comes to You in the morning is my Tefilah.