should i, or should not?

until today, i have got 2 conditional offers; from University of Queensland, and another 1 is from Monash University. i'm glad that at least i have somethings to encourage myself to study harder and perform well in studies. but still they are subjected to conditions; 1 of them is good result in IELTS.

this condition really make me drowned in dilemma. i don't know whether i should repeat it or just let it be as it is. the reason why i am drowning in dilemma is because of the offer from UQ. it states that i have to submit another slip of IELTS result with overall band score of at 7 with at least score of 7 in writing and speaking. in other words, i have to resit for the test.

knowing that the cost is high, and realizing the fact that i am not high-confident about my capability of getting better results, i think i shouldn't. i notice that my english has improved even though it is as if 1-step forward. but seating for this kind of test really needs skills and more practices that i may be lacking of. that's why i am wondering if i were to retake the test, would i be able to get a better result?

at the first place, i was excited to apply for UQ. but since the requirements are quite high, knowing the fact that i am not deserved to get a place there due to my incapability, but at the same time getting another alternative which is Monash, i think i should not repeat the test.

but it's kinda sad to just leave the offer without trying to satisfy the requirements, of course it is as if showing my lack of courage and confidence to achieve better performance. thinking of all this, and now i am completely having no idea about what should i do...