i mean, you don't necessarily need to lower down the volume of the whole song. the problem with this is that something causes this to be over 0db, causing it to clip. an easy solution would be to apply a limiter to it, not lower the volume as a whole. there is also the solution where you can troubleshoot each sound and adjust them accordingly. now because of the clipping, your mix has gotten slightly distorted and muddy.
now notice i said slight. your song only clips slightly in a section, and its not even that bad. doing the dirty work and applying a limiter to it, guess what, its still distorted and muddy. i think the culprit here is your mixing. if you were to isolate all the sounds in the lower region, you would find out that most of the space is taken up by the main synths and plucks, which clash with the kicks and bass placed into the song. you can probably fix this by eq-ing the lows of the main synth and try finding ways so the pluck won't reside at the lower region. (either increase octave or find a new one) that being said, there is an empty space in the mid and high region. you probs should add more sounds to make it fuller after trying to troubleshoot the problem. sort of ironic that your song is called FREQUENCIES and the problem here is, well, frequencies.
as for the subjective part which is my overall feeling, i like this. even though it's a bit too simple especially the drums, i really like the melody and how that wubby synth sounds. gives me that cool jazzy vibe. it's like i'm having a chill time just exploring somewhere in a game or something. i also like the ending part (2:53) which gives me some earthbound vibes, especially with that grainy effect added. but maybe you could've did more by changing things up a bit and add like, another synth playing on top of the main synth but a bit faster. (idk how to explain this lol just a counter melody?) honestly without the mixing problems, this is enjoyable.
p.s. i dont wanna be the guy, but i dont think "drum-n-bass" and "slow" at the same tags are supposed to coexist with one another (unless liquid dnb idk). the drumbeat is more hiphop-ish so to speak. okay i'll stop talking about genres