After listening to your ideas in your first post my impression is that your ideas are not that great to start with. Sorry but as someone who has written music for trailers and many other things I am of the opinion that the ideas are only mediocre at best.
It is only after you do all the hard work and also listen to the greatness that many others have produced you then start to realise that your original ideas are pretty boring. But that does not mean though that your ideas are always going to be mediocre. The good news is that after the hard work they should get better.
The problem here is that your are delusional in thinking your ideas are great, sorry they are not. It is only you who thinks that they are great. But it is good that you are at least getting ideas. Do some listening and you will start to get the idea. How much real listening do you do.
Melodic ideas are one thing but what about the harmony that goes with that and then what about the arrangement and what everything else is doing to support melodies and harmony. The rhythm. You have got a long way to go. But unless you do the real work and it is a long hard road in some respects those mediocre ideas will only ever stay that way and they will never progress beyond that. You will probably remain frustrated. Frustration is often a result of not being able to fully express yourself.