Leave level before you chase tone
Pull the master down and give the mix room before you start stacking processing. In FL Studio, a beat that peaks below the ceiling is easier to judge than one that is already clipped by a long chain of loud plugins.
Use a rough balance first: kick and bass together, snare and percussion, then music. If the melody disappears when the low end arrives, fix the balance or arrangement before reaching for saturation.
Give the vocal a clear lane
A vocal usually needs more than a frequency notch. It needs fewer competing notes during the words that matter. Automate a pad, counter melody, or texture down for a phrase, then bring it back when the line ends.
High-pass sounds that do not need low information, but do not use filters as a substitute for arrangement. The cleanest mix is often the version where the part is silent for a beat.
Check the hook at low volume
Turn the speakers down until the beat is almost background music. The hook should still have a recognizable center. If only the cymbals and upper melody survive, the balance is telling you what is too loud, not what needs another effect.
FAQ
How much headroom should an FL Studio beat have?
There is no single magic number, but leaving several dB of peak headroom while you build gives you room to make decisions. Focus on a clean balance and avoid clipping; the final loudness can be handled later in the release process.