This Is Love

"ça te rendra", just like "ça te rend", should be written without a final -s.

I tried to recap hereunder what I noticed, but as many of these points are only nuances, you must not take everything for granted (there are a few grammatical errors, though).
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In general, I would say that the translation is good, except for some details or nuances :
- the typos already mentioned by Y... (let's call him so, it will be easier ;) )=, plus :
-- si tu essaye > essayes
- this was anything but blood > I understand "c'était tout sauf du sang" (meaning : c'était n'importe quoi sauf du sang)
- to get out / Of this pattern of pain : perhaps "pour (te) sortir De ce schéma de souffrance" (or : pour échapper à ce schéma, à ce scénario de souffrance) ?
- If there's any sleep at night : si même j'arrive à dormir la nuit, si on peut parler de dormir la nuit
- A jealous fool who won't let go : "avancer" ??? un imbécile jaloux qui ne lâchera pas prise ?
- si je regretterais mes actions > si je regrettais (incorrect French, after "si" here it should be an imperfect)
- to stoop so low = s'abaisser autant. (Est-ce que vraiment je m'abaisserais autant ?)
- stick around : reste dans le coin, reste un peu (it's kind of familiar, I would perhaps say "T'en va pas")
- But I just love to pick a fight : Mais j'adore chercher la bagarre
- I was hit as a kid : I understand "j'ai été frappé quand j'étais petit", or better "on m’a frappé quand j’étais petit" (not : j'étais frappé)
- I can't change a bit : je ne peux rien changer
- Well then someone has to die > Eh bien alors quelqu'un doit mourir
- Once you chase me down the hole : I understand « après m’avoir pourchassé dans mon trou » ?
- ça te rendra(s) mal à l’aise > ça te mettra mal à l’aise
- Oh then the darkness rolls in > Oh, alors les ténèbres se rassembleront (or : s’avanceront)
- And you'll forget who I have been > Et tu oublieras qui j’ai été (not « ce qui j’étais », incorrect)
- I think you better tell your friends to go > Je crois que tu ferais mieux de dire à tes amis de partir
- You gotta wonder what it meant > Tu te demanderas ce que ça voulait dire

There would me some more minor points to discuss, among others ambiguities (for ex : The simple love that your grandparents had, I understand that it means "The simple love your grandparents felt for each other")

You're welcome. Actually, when I fist read your translation, I found it quite good, it was only at second sight that I thought one could find some nitpicking.

- About "to chase me down the hole", yes, I think it refers to Alice in Wonderland ; I couldn't find a better equivalent yet.
- "it was anything but blood" : perhaps "c'était autre chose que du sang", a little lighter than "c'était quelque chose d'autre que du sang" ? I'm not quite sure, but I understand that "anything" here means "something, whatever it might be" (except blood)
- "quitter ce dessin de douleur" doesn't seem false, but it sounds a little strange in French. First, when listening to it, one might understand "quitter ce dessein de douleur" (dessein = plan, design, intention), but anyway "dessin de douleur" seems odd. Perhaps "sortir de ce cadre de souffrance" ? If I come upon a better solution, I'll tell you.
- About "L'amour simple de tes grands-parents", it's right, but one might understand "the love your grandparents had for you" (although it seems a little ambiguous in English too). Perhaps "l'amour simple comme du temps de tes grands-parents", or something like that ?
- The same for " But you'll love, love, love it, this is love" : "tu l'aimeras" is right, but in French, as we have no neuter gender, the pronoun "le" might refer to something or to somebody. I would suggest "Mais tu aimeras, tu aimeras, tu aimeras ça, c'est l'amour" for example.

Anyway it's not to easy as it first seems, especially when considering that this is no Academic English, and not always quite explicit...

Congratulations for your level in French !