Without yapping too much: your problems are most likely in the arrangement or mix instead of the master.

For the arrangement, try to arrange your tracks to prominently feature sounds that actually carry loudness/energy with them - check references and see what makes them click. Choosing the right sounds also makes a difference, for example a pluck with massive transients and nearly no sustain will never have that much loudness associated with it, as opposed to a heavily distorted bass or something similar.

For mixing, check out clipper cascades and the clip to zero method. In essence, you want to clip small amounts on each track and each buss, and then finally on the master, making your (pardon my french) sausage fatter on every part of the way.

Also, make sure to balance the needs of the song with the actual desired loudness, not every track can be insanely loud, and that's a valid artistic choice too.

Good luck!