Hi, I am trying to solve the following formula in Mathematica, I have checked that the function it outputs is correct calculation that I entered, but the output is exactly the same as my input, i.e it literally says exactly what I entered, which I have put below:

DSolve[{((f''[t])^2) + (((f'[t])^2) (12 c + 24 c d Exp[a f[t]])) + 
    d Exp[a f[t]] (2 a + (a^2) (d Exp[a f[t]])) == 0, f[0] == 0}, 
 f[t], t]

I believe I also need to state the initial condition for f'[0] however it gives an error message when I enter any value for this, i.e f'[0]=0.

'Equation or list of equations expected instead of True in the first \
argument'

Could someone please tell me how I can find a solution for f[t] for this formula? I am a complete novice at Mathematica but will have to learn in the coming months!

Thank you!