Yes. Sloth prompts you to save at the end of Act 1. (Don't save prematurely by selecting the "save menu." Continue until the game has a "name this save" window and the game will save this.) To begin Act 2, hit New Game and it should bring up that save.
I'm afraid I've only played these games on PC and I don't know anything about these games on android. I do hope you are successful starting Act 2.
Also story wise in Act 1; when I was given the option to become a college elite, I refused it every time. I've never tried accepting the offer before, I might start a new game just to see what happens. (Edit: refusing is required to play Act 2)