Don't drive on your starter engine!

 Gasoline powered cars have two engines.  There's a small electric one (1) that has one job, namely, starting the big one (2). 

Your life has two engines too -- the starter engine ( you ) and the powerful engine ( you empowered by the Holy Spirit ).   

Hint for a much easier time in life:

Don't drive on your starter engine!

Other expressions of this thought:

[...] but those who hope in the Lord will renew their strength. They will soar on wings like eagles; they will run and not grow weary, they will walk and not be faint.

Christian Bible, Isaiah 40:31 (NIV)

 And from the motto of Boys' Town, USA:

He ain't heavy father, he's my brother!

music:  

 He ain't heavy, he's my brother (The Hollies,YouTube )

 Hands ( Jewel )

Image credits:

http://bestride.com/research/tips-and-tricks/why-does-my-battery-keep-dying

https://www.pinterest.com/pin/560698222328318119/