I can do all things through Christ who strengthens me. 
Philippians 4:13
This summer I prayed these words every single day - "Lord please give me Your strength to get through whatever is thrown at me today"  Some days I just asked for His strength to get up and be productive.  Other days I asked for His strength to get me through specific events.  
Although I can say I am honestly the "strongest" I have ever been in my life, I haven't gotten their without seeking God's strength.  
On January 31st, I had a very important day that would lead to some very important decisions to be made out of my control.  The passage for the day in Jesus Calling  was this:
I am your Strength and Shield.  I plan out each day and have it ready for you, long before you arise from bed.  I also provide the strength you need each step of the way.  Instead of assessing your energy level and wondering about what's on the road ahead, concentrate on staying in touch with Me.  My Power flows freely into you through our open communication.  Refuse to waste energy worrying and you will have strength to spare.....My Presence watches over you continually, protecting you from both known and unknown dangers.  I am with you and will watch you wherever you go.  
Look to the Lord and His strength; seek his face always.  
Psalm 105:4
I think I have posted this song before I get a little bit stronger  by Sara Evans  http://www.youtube.com/watch?v=22zB6Soc2Gk
Woke up late today and I still feel the sting of the pain
But I brushed my teeth anyway
I got dressed through the mess and put a smile on my face
I got a little bit stronger
Riding in the car to work and I'm trying to ignore the hurt
So I turned on the radio, stupid song made me think of you
I listened to it for minute but I changed it
I'm getting a little bit stronger, just a little bit stronger
And I'm done hoping that we could work it out
I'm done with how it feels, spinning my wheels
Letting you drag my heart around
And, oh, I'm done thinking that you could ever change
I know my heart will never be the same
But I'm telling myself I'll be okay
Even on my weakest days
I get a little bit stronger
Doesn't happen overnight but you turn around
And a month's gone by and you realize you haven't cried
I'm not giving you a hour or a second or another minute longer
I'm busy getting stronger
But I brushed my teeth anyway
I got dressed through the mess and put a smile on my face
I got a little bit stronger
Riding in the car to work and I'm trying to ignore the hurt
So I turned on the radio, stupid song made me think of you
I listened to it for minute but I changed it
I'm getting a little bit stronger, just a little bit stronger
And I'm done hoping that we could work it out
I'm done with how it feels, spinning my wheels
Letting you drag my heart around
And, oh, I'm done thinking that you could ever change
I know my heart will never be the same
But I'm telling myself I'll be okay
Even on my weakest days
I get a little bit stronger
Doesn't happen overnight but you turn around
And a month's gone by and you realize you haven't cried
I'm not giving you a hour or a second or another minute longer
I'm busy getting stronger
And I'm done hoping that we can work it out
I'm done with how it feels, spinning my wheels
Letting you drag my heart around
And, oh, I'm done thinking, that you could ever change
I know my heart will never be the same
But I'm telling myself I'll be okay
Even on my weakest days, I get a little bit stronger
I get a little bit stronger
Getting along without you, baby
I'm better off without you, baby
How does it feel without me, baby?
I'm getting stronger without you, baby
And I'm done hoping we could work it out
I'm done with how it feels, spinning my wheels
Letting you drag my heart around
And, oh, I'm done thinking that you could ever change
I know my heart will never be the same
But I'm telling myself I'll be okay
Even on my weakest days
I get a little bit stronger
I get a little bit stronger
Just a little bit stronger
A little bit, a little bit, a little bit stronger
I get a little bit stronger
I'm done with how it feels, spinning my wheels
Letting you drag my heart around
And, oh, I'm done thinking, that you could ever change
I know my heart will never be the same
But I'm telling myself I'll be okay
Even on my weakest days, I get a little bit stronger
I get a little bit stronger
Getting along without you, baby
I'm better off without you, baby
How does it feel without me, baby?
I'm getting stronger without you, baby
And I'm done hoping we could work it out
I'm done with how it feels, spinning my wheels
Letting you drag my heart around
And, oh, I'm done thinking that you could ever change
I know my heart will never be the same
But I'm telling myself I'll be okay
Even on my weakest days
I get a little bit stronger
I get a little bit stronger
Just a little bit stronger
A little bit, a little bit, a little bit stronger
I get a little bit stronger
I know where that strength comes from.  It doesn't happen instantaniously.  I compare it to physical strength; I've been lifting and toning and working my tail off to increase my strength (and metabolism :)), it doesn't happen overnight, in a week or in a month even.  But one day you realize the same weights or workout just aren't as difficult.  Just as one day you wake up and the same events that used to upset you and ruin your day or week, really don't cause you to even twinge.  It's called strength.  And all the prayer and effort are sooooo worth it.  God's strength gets you through anything.
Psalms 28:7  The Lord is my strength and my shield; in Him my heart trusts, and I am helped; my heart exults, and with my song I give thanks to him.
Genesis 28:15  Behold, I am with you and I will keep you wherever you go, and will bring you back to this land.  For I will not leave you until I have done what I have promised you.
 
