Hi Manpreet Kaur, 

To translate -

I also prepared a fitness programme for myself 

to sound very French, you have to use the reflexive 'se préparer'

so you could say -

Je me suis aussi préparé un programme de fitness

You would be understood but a French person wouldn't use 'préparer pour soi/ moi' but 'se préparer quelque chose'.

Hope this helps!