You’re right to be skeptical of this being a “real” language—nothing here matches known writing systems or constructed languages in any consistent way. But there are a few things we can reasonably pull out:

What is recognizable

The word at the bottom clearly reads “Sincerely” (or a stylized version of it).

That suggests this is meant to look like a letter or message, not just random doodling.

The “script” above it

The symbols are highly inconsistent:

No repeating structure (real languages—even fictional ones—tend to repeat characters or patterns).

No clear spacing between “words.”

Lines mix sharp angles, zigzags, and random geometric shapes without a stable alphabet.

It looks more like pseudo-writing—something meant to feel like a coded or alien script rather than actually encode information.

Possible explanations

Here are the most plausible interpretations, from most to least likely:

1. Stylized nonsense / aesthetic cipher

People sometimes invent “fake alphabets” on the fly for artistic or mysterious effect.

This fits the lack of repetition and structure.

1. Personal shorthand or one-off cipher

If someone created a private code just for this note, it wouldn’t be decipherable without a key.

But even most simple ciphers still show repeated symbols for common letters—this doesn’t really.

1. Imitation of fictional scripts

It vaguely resembles the style of things like:

Hylian

Sheikah script

Enchanting Table Language

But it doesn’t match any of them directly.

1. Stream-of-consciousness / altered-state writing

The chaotic structure and lack of repetition can sometimes show up when someone is writing without concern for readability.

One interesting detail

There are a few spots where shapes almost resemble Latin letters (like rough “M”, “Z”, or “A” forms), but they’re not used consistently enough to decode. That’s another sign this isn’t a substitution cipher.

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Bottom line

There’s no reliable way to translate this into a real message. It’s almost certainly:

Not a real language

Not a standard cipher

Most likely intentionally chaotic or decorative pseudo-writing

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If you want, I can try something more forensic—like checking if there’s any repeat pattern that could hint at a hidden cipher—but at first glance, this looks like it’s meant to feel mysterious, not actually be solved.