Oh i often dream about that,lol (i play somtimes).
I would buy the house of my mums choice for her, my brother can live with mum untill he's mature enough then i'll buy him a house, me house to live in with my best mate (if we cant live together i'll buy her a house, by me,mum and bro and best mate a vehicle of there choice.
Large sum to my family split.
Holiday for the above and me.
Save some.
Live a live of luxuary
Ky
PS i wouldnt change and i would share with charties