Honestly, all kidding aside the mind is incredibly tricky. I woke up breathing heavy, and literally tears in my eyes. That was too much emotion for 7:30 a.m.
I'm impressed with that statement. Writing down dreams involves 1) remembering them; 2) having a writing tool at the ready next to the bed before the dream fades; 3) being committed to doing it. I do believe you can train yourself to do it well. I went through a period in my 20s where I wrote down every dream. After a while, you can see patterns. As soon as you see the patterns, you can control them. Eventually you can solve your problems (anxiety, repressed emotion, etc.) in your sleep. I don't know if my last statement is a true statement - but it would be nice to think so.I write down most of my dreams down no matter the scenario.
When I was around 15 I used to write down every dream I had no matter what. After awhile lucid dreaming just came sort of naturally (I could control dreams for seconds before waking up), and after maybe 6 months of that I could stay conscious in a dream for a little while. What an experience it is, and I would recommend trying it to anyone that wants to do it. Now the reason I write my dreams down is sometimes I dream some pretty cool stuff that helps with my writing, but honestly I may try to get back into lucid dreaming.