This is my first contribution to Ultimate Guitar, and I am also 15 years old so bear with me. :)
I would recommend to play with barre chords as well for the more "rocky" sound.
Also if you want the tab for this song it's in my profile.
Intro D A C# A
Verse
D A
I stepped up to get stepped on
C# A
I stopped to see it that day
D A C# A
When the sun went down on our holiday (holiday the sun went down)
D A C# A
And there's pictures though that confirm the surprise (that's realized)
D A
When beneath the paint
C# A
You see it's all love/hate
Pre-Chorus
A G
Ain't it funny how you feel lost
F# C# B E C# A
Even though you found your way back home
A G
Taste's so bittersweet, it's just the cost
F# C# B E A
Of being everyone's stepping, stepping stone
D, A, C#, A
Chorus
D A C# A
Bet you never thought [x4]
Pre-Chorus
A G
Ain't it funny how you feel lost
F# C# B E C# A
Even though you found your way back home
A G
Taste's so bittersweet, it's just the cost
F# C# B E A
Of being everyone's stepping, stepping stone
A B
B A
I'm not your stepping stone
2:00
G A
2:30
A B
A B
I've got a hole in my back [x10]
I got a hole in my back that I can see out