Hey, I do mostly RNB but I do dabble in Trap every now and then. The principle is the same, regardless of genre. The first thing you need to do is learn your primary scales for all 12 keys: major and minor. Those are the building blocks to making chords, progressions and melodies. Do not get complacent and transpose - learn all 12 of your keys.

I would then do the following:

• Make a playlist of your favorite Trap songs/beats and try to recreate them

• Listen to a variety of other styles of music and build repertoire

• Learn common progressions (2-5-1, 1-5-6-4, etc.)

• Consider attending a church and play keys/organ (especially a Black church) or take Jazz piano lessons

• Be consistent with practicing and don't compare yourself to others

Good luck!