For long life

If u want  long life u can either recite mahamrityunjay mantra or simple om namah shivaaye( 108* 11) everyday to be saved from diseases.

For wish fulfillment

Take a parchment paper n write ur wish on it wid red color pen.
Burn it, take d ashes n blow it in air n say "so mote it be"

wait for 5 hrs/days or weeks for ur wish to fulfill

attaining sidhi

light a diya n chant sidhkunjikastrotam.. den do d original mantra.. u will attain d sidhi of the mantra u r chanting.