Hi guys.. I just found out about Lucid dreaming today

I am wondering, the FIRST thing you need to do to even start learning how to induce Lucid Dreaming, that is Dream Recall?

So, if I want to learn, I have to learn Dream Recall, correct?

That would require waking up around every 90 minutes or so, during a REM period?

Or do I just try and remember my dreams when I wake up in the morning?

Help appreciated, tyvm, Mondo.