Thank you so much guys. I will hardly work on it. And demonic_duke, I'm really impressed of your pronunciation as a native english speaker.

Unfortunately, I totally ignored the hard-soft consonants or the pronunciation in general when I started learning russian in last summer. I will try to follow your advices.
Anyway, before I've got your answer, I've found a website I haven't seen so far:

Learn Russian | Russian Alphabet | Russian Soft-sign pronunciation

There is a special sub-section for many consonants a bit down there with many sound examples and even slow versions. I couldn't listen to the examples so far as I'm in my office and I'm not able to try it out cause It would ...look/sound pretty weird for my mates haha

BUT. They say, I should "hold the tip of your tongue at the join between your front bottom teeth and your bottom gum. Then use the middle of your tongue to say the syllable that contains the soft-sign."

Hmm till now, I always heard I should put the middle of the tongue up to that middle part of the gum, but I always had the tip at the top too.
Is it true that the tip should be at the bottom???
My girlfriend said it shouldn't make a difference. Does it makes a difference for you guys, if you put the tip at the top or bottom?

and about that y which is combined with the consontant...yeah that's what I have read in my books too. Even though some said, it's not a russian и but more a й!?