I think I understand this question , I would approach this as a data management issue by making a new variable that consisted of a lagged value representing the previous test and just look at correlations between the current test outcome and the lagged test type . <| sep |> Developers never seem to learn this . My least favourite thing by far is when they change a working element of the game which nobody was complaining about see pubs replaced by Casual mode , Righteous Bison when people were asking for other shit to be done . <| sep |> What ' s your preferred coding language ? Side note I really hope you get through this . Trust me , just because you don ' t feel like living now doesn ' t mean you ' ll feel the same way 5 or even 1 year from now . This may not be what you want to hear and you may not want to listen to me , but you need to get clean . Do you have any close friends or family members that can support you ?