Hello to all!

Like always, before I start, please excuse my English which may be not so good .
Lately, I've become more and more interested about dreams, especially since I've discovered that my dreams are very intense. Is it normal that when I wake up to remember that I've felt different tastes and sensations in my dreams? As I've said, I remember tastes exactly and sensations (hungriness, coldness, pain) as well. But I have some problems - if I see something written in my dreams, when I woke up I remember than I knew what it was written, only that I don't remember the letters/words. This is so frustrating so if someone knows what can I do, I'll appreciate any advices
Another problem is: when I have to wake up really really fast & early to go to school I don't have enough time to remember my dreams. I've read somewhere that when I wake up I have to stay tranquil, and when I sit calm in the morning I remember my dreams perfect.
And another thing a person I've loved a lot died more than 1 year ago and I dream about her almost every night (the setting may be different, but the story goes the same). Is it normal? Should I be worried?

Any opinion is welcomed, I'm glad I'm here