It's cool man, you got questions, people here have differents types of answers to give (funny, cryptic, ironic, etc), it's a big forum, you have asked stuffs before, you got answers, don't get mad because some people joke with you it's harmless.
What Kouros meant (I think) with his first post is that you can mix scales (and modes) and you don't have to stick to one when you start composing a song.
But it's wise of you before doing that to try to hear the different scales (not just major and minor, knowing more scales is adding vocabulary to your musical langage).
To hear the scales I can only recommand RapiComposer (again) which has a scale browser (top left "scale'), you open it right click on any scales (and you have almost all of them) and hit play, you hear the chosen scale starting on C.
But you got to give yourself time though, Rome wasn't built in a day, be patient.

 

not sure if rome is a good example to use, sure it was build but it also got burned down, didnt really go well for them in the end

 

You don't have to apologize to anyone bro. Just ignore the negativity.

 

Just.. Something additional...!

http://feelyoursound.com/

There is software (paid) and Scales MIDIs with Infographics (free).

I have not used the software, but for MIDI or infographics, you can remember some notes of your chosen scale while you are making music.

As suggested by other members, please focus more on enhancing chords and scales vocabulary. These are just helpers to break the initial hurdles.

Practice with patience makes a good musician.

Agree..?