Msc in trinity or ucd

hgulee06

Hello.
I graduated Ba,ucd econ/politics I am thinking either to go ucd behaviour econ or trinity MSc international development
I am in pretty weird position tho indeed I tried trinity MSc last year for the two- months. Still, I felt I am really behinds in terms of mathematics and stats, So I had to take an off-book year to catch up my math skills...( I had no idea of linear matrix algebra etc.... also didn't take econometrics module during ucd undergraduate)
After almost six months of studying maths by myself, I still do think I am behind on maths. There are practically only 4monts left me to catch up.... to be honest, I didn't expect this level of theoretical on my trinity course when I heard international development I thought it's more of field works rather than all maths stuff.
Should I go back to ucd and do the master there??? or do you think I will come across a similar issue with UCD Aswell? And better off try with what has given???