Trance

I have the same problem.  I use the same type of noise cancelling ear muffs (or whatever they're called... can't think of the proper name) that people use on gun ranges.  Along with that, you can play some nature sounds- rain works for me- and I can't hear anything beyond that.
Hail Satan

I can't go into trance because people from second floor are noisy,i am a beginner pretty much and don't have much experience, what can i do about it?

Music is amazing when you need to focus! I once accidentally went to trans when I was studying during my free period in school... I was listening to one song on repeat & focused on what I was trying to remember... And then my friend came to annoy me even when she knew I have an exam... Good thing the music was loud enough I didn't hear the noise she was making & was able to get out of it without the pain of being shaken out of it

I am having trouble entering a trance. I'm doing the breathing exercises and can get completely relaxed, but I can't get the feeling effect

It takes time and persistence, NOTHING happens in one go.

Same with me.

If any one has trouble feeling the falling effect for a trance id suggest mby doing more hatha yoga or deep breathing meditation to get a feel for directing breathe\energy to the lower parts of ur body.

Once u can feel like breath\energy feelings being moved to lower parts of ur body then instead of trying to lower the breath\energy for a trance just feel a gradual lowered focus inside urself on exhales then a sticking in place on the inhale(unless u can maintain a falling feeling on the inhale also, then go for it).