This is how trance should be

Making long songs is something I find hard as well, but i actually love the long intro. What I suggest you do is gradually bring in layers like you did around 1:00 and onward, and keep layering very gradually. Make an emotional climax using filters on that lead synth and drop it with a more powerful backing melody than you used. Just suggestions, a very great piece with a great name, but the break around 2:30 should come a bit later and obviously you know the outro needs a change too.