Please help me 😂🤒

I've just brought ovulation tests as well as a thermometer 😁 I don't have a clue what to do exactly with them 😂 is there meant to be a particular time of the day to use ovulation strips and to check your temperature? Do you check your temp if you are feeling particularly warm like when the heating is on or will that give false readings etc? I don't know 'the rules' of doing this, please enlighten me, I'm clueless! 🙂