Can one mess up fate? How can one fix messing up with fate?

“fate” to me is just another term for cause and effect.
Even “cheating” is bound to it. You can not cheat cause and effect. Whatever you do, whatever happens to you, is fate.
The cold and hard mistress of cause and effect is immutable for objects above the quantum level.

Fate demands that everything should be messed up.
Fate hates happiness or success.
But we can defy fate by making rational choices. We can beat fate by defining our happiness and achieving our own success. When you are successful and happy, fate has to go pick on somebody else.
Fuck fate.

“The Moving Finger writes; and, having writ,
Moves on: nor all thy Piety nor Wit
Shall lure it back to cancel half a Line,
Nor all thy Tears wash out a Word of it.”

Edward Fitzgerald’s translation of the poem The Rubáiyát

By not tempting it.

Fate, by definition, cannot be cheated. It may be one’s fate to think they are cheating some predestined outcome, but having sidestepped what on thinks was inevitable, on finds out that was your fated outcome.

However, this is all predicated on a belief system that only offers free will and choice as appearances as one makes decisions and choices one was fated to make. Belief in fate takes all responsibility out o one’s hands.

I do not believe in “fate”.

Fate is not predestined. It is merely the shit that happens.

If we were bound by fate or predestination, freewill would not be possible. Fate is the confluence of circumstances that when one looks back at aspects that led to the moment appears to have been inevitable and that had something been different then, the now would be different. However, as Omar Khayyám wrote (Edward Fitzgerald’s translation that @Jaxk quoted) what was was and what is is. Predestination is limited to an individual’s genetically directed predilections and innate talents, which may or may not be developed, and the social environment that may encourage or inhibit the development of one’s propensities.

If you can “mess up fate” then there really isn’t any fate.

By being aware that fate is also an option.
Your choices can be deliberate or left to fate.
Everyone makes a decision even those that don’t make a decison are letting fate take over when one choose to do nothing, of which that in itself is a choice.

If fate fixed an individual to a predestined existence, then freewill could not exist. Without the ability to effect their journey through life, it would be like a phonograph needle following the modulated spiral of a record. Awareness of experience enables one to consider changes that may alter the direction of their life.

Kobayashi Maru
A no-win situation caused by a set of rules that can only be won by changing the rules, in effect, cheating. This term comes from the name of a small ship in distress in a scenario shown in a Star Trek movie. According to the film, the scenario is featured in a training simulator for students attempting to become ship’s captains. They receive a distress signal from the Kobayashi Maru and can either attempt to rescue it and be destroyed by enemy forces or leave it and let it be destroyed. James T. Kirk, according to the film, is the only person to have won the scenario—by reprogramming the simulator. Kobayashi Maru, loosely translated, means “Little wooden ship.”

Someone experiencing a Kobayashi Maru can be said to be between a rock and a hard place.
I was cheating fate even in my earliest memories. Somehow even the craziest of my ideas worked.