Architecture final year thesis

I'm genuinely losing my mind I don't have a topic finalised (we have to give 3 it'll be chosen randomly from that) and I don't have a site I'm gonna lose it bro I'm constantly feeling like running out of time, can't even research properly because of submissions now I have less than 15 days left to submit my research topic... The future feels bleak and stressful. Somebody with experience HELP (especially someone in the field).