@wizardofOz I think nasabi naman na for the most part yung mga dapat mong gawin, i.e., submitting complete and accurate supporting documents to solidify your background in claiming for the points you need to get a visa.
Personally, I think it's a matter of quality over quantity as far as supporting documents go. Hindi naman porke maraming kang sinubmit, mabibigyan ka ng visa. It still boils down to the completeness and accuracy of your supporting documents. Also, make sure you understand what the requirements are para maibigay mo yung hinahanap nila, kasi kung mali lang din ang ibibigay mo, it won't help you at baka di ka pa makakuha ng visa.
Also, keep in mind that while there may be some things that are out of your control (speed of assessment process, grant decisions, etc.), try to put yourself in the best position that you can possibly can to get a visa. Work on the things you can control and pray for the things that are out of your control.
I hope that helps. 🙂