Calculate Win/Loss Streak & Last x games

I'm trying to figure out how to calculate the Win/Loss streaks as well as the W-L-OTL results of the last x games (variable by entering number in column)

I hope the spreadsheet will be able to show what I'm looking for as I'm unable to explain it very clearly.

For instance, I've highlighted a team and the areas that I need some help with the formulas.