Don't panic.

I couldn't remember any dreams that i had during the night, so i began napping.
When you take a nap, you sleep alot lighter than you do if you have been through the deep sleep phase first. And in my experience, you dream alot more in a shorter timeframe.

I am by no means an expert, but what i did in your position and what i would recommend you to do is:

- Take 1-2 hour naps daily for a week or so. (if you have the time)

- When you wake up, remembering your dreams should be your priority.
You can ask someone to awaken you at a random time, telling you to remember.

- Journal as much as you can from these dreams.

- After a week or so of doing this, start going to bed early and get 8+ hours of sleep.

This should help you build up some form of recall.

Hope it helps /cheers