What's preventing you from doing either of these? Lottery ticket and unlocking stay at home is super easy, since unlocking stay at home requires you to have the lottery ticket. For Zarina's help, you just need to remember to participate in both Yoga classes then tell her to give the coach a massage. Neither of those steps interfere with making sure you are friendly with Janet or Mia. Similarly with the drugs, since that just requires breaking into the office on Thursday night, then finding Brian on campus, and selling to Brian doesn't advance time, so again, it shouldn't interfere with anything else.