hey idk how much this helps but for AT2 mx1 last year I got 47% (in an internal ofc)... it was weighted 20% and I managed to pick up my marks later in the year to get a band 6 all up in the end (my internal mark was 44/50 in the end, after all the voodoo nesa does behind the scenes).
I know you may not have the same scenario rn with this being trials, and your past exams in the past (also school and ranks being a factor but idrk about how those work tbh)... BUT there is still a very likely chance that if you pick up your marks in externals and really smash the finals out you will still be fine