I have done everything without cheats or trainers or
anything

100% progress
All 6 girlfriends at 100%
All golds in all schools
All gang territories taken over
All skills maxed out
Both Beat the Cock challenges done
Burglary done - infinite sprint
Gambling skill level Whale - maximum wager is $1, 000, 000 and you can borrow up to $1, 000, 000 from a casino