I am now in story complete in gta iv and i want to go up a level i mean to go to mission no.1 wat do i do plz?

Question

I am now in story complete in gta iv and i want to go up a level i mean to go to mission no.1 wat do i do plz?

Answer 1

pause the game. in the menu there is an option that says "Game."

Select it then select New game.

Answer 2

press start then go to the game section it should have  a option for new game