Ah, sick!! I use FL Studio too, alright, so your track rn I think is pretty good, but it could benefit from some mixing, mostly just volume balancing, but if you wanna get fancy and add some wild effects that works too. Heres some of my tips with mixing (beginner friendly)
The mixer grants you a total of 115 inserts, and 10 effect slots per insert, these inserts can be basically anything, a trick I often find myself using (especially in rock or orchestral tracks, even w soundfonts) is sidechaining https://youtu.be/29nHK-JFHCA?si=g8ulcdnHlcEj2uwl
The tutorial is one I used years ago, when I was maybe 1 year into learning FL Studio, it mostly covers using it for kicks, bass, 808s, stuff like that, but technically you can sidechain whatever you want. I often use it for reverb, heres a guide on that https://youtube.com/shorts/RBetah22fiI?si=s2wHJhyo95E8prnV
The overall idea of sidechaining is granting you (the producer) control over how your sound is designed, and you definitely don't need to pay any money for a good sound (plenty of free plugins exist and FLs stock stuff is basically perfect if you are just starting out)
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https://youtu.be/29nHK-JFHCA?si=g8ulcdnHlcEj2uwl
https://youtube.com/shorts/RBetah22fiI?si=s2wHJhyo95E8prnV