Applying is a choice you control. Getting picked is theirs. Do your half well.

Two halves exist in every application and only one of them is yours. You control the form, the deadline, the draft that got read twice, whether you asked for the reference early enough. The decision belongs to people with constraints you will never see, so reading their no as a verdict on you misunderstands who was doing what.

Judge yourself on whether you did your half properly, and keep a note of what you sent and when. Apply for more than one thing, so a single no is not carrying your whole plan. Then let the waiting be their business rather than yours.