US Immigration from United Arab Emirates

I was asked by US embassy in Dubai to schedule appointment for a K1 visa interview, it's been almost a month that I've been checking for a slot that's open to no avail. How should I go about it ? Or does anyone know when appointment date are usually available?

When we expect to receive the other children approvals or every case different design date as may be take long time waiting for other approvals?
Note: California Service Center
PD: 4 October 2021
Please I need your experience about this situation.

Hi, I intend to apply into a community college, it provides a 2 year associate degree which can be transferred into pathway program into a university where you can study for 2 more years and get a full bachelors degree, it's more cost efficient for me personally plus associate degree gives me hands on skills throughout those 2 years at college, but the main reason of going for community college is it's cost efficient studies..my question is if I tell this clearly to the VO would I face rejection? Like what is community colleges visa approval ratio?

I'm planning on studying in USA on F1 visa, I'll be applying from UAE, is it necessary for me to mention my relatives that live in USA? Only one uncle of mine lives in USA and he's a citizen, but I've been told that if I have a relative in USA I'll be denied the visa? Would it be an issue if I don't mention him in my application?. Looking forward to answers, thank you.