Up and down league

My league is always going to up and down between top 5 teams, even top team also loosing to bottom teams,although top team have 7 points advantage than my team(I'm 5th place), I want be in top 4 atleast otherwise tank, the problem is if think to tank I'm winning against good equal teams so I thought I can be 4th place then suddenly losing against weaker teams, I'm so confused what to do next

Win bonus helps. Put one that'll give you a profit or a marginal loss if you win against these teams. With the top 5, always 500k.

yeah, try lv1 bonus
also play defense/counter even they are weaker and you have b.p.