After a tiresome day of English exam,s I come back to my room and throw myself onto my bed, tired and yet somewhat relieved.

Troubling doubts are still lingering in my head but I try to forget how I did in the exam; there's no use of thinking back what I did right or wrong - it would only worsen my overthinking.

"it would only make my overthinking worse" sounds more natural

But "WHEN?" I ask myself.

I ask myself back.

I have been giving the same excuses for many times, saying that I would try hard next time.

I would be more disciplined next time.

However, that "next time" never comes and I have been stuck in this endless circle.

Promptly, I get up from the bed.

I repeat to my self: there's no reason to be doubting myself or regretting what can't be fixed.

I should do this right now if I don't want to feel like this in the future.

I took my opened my laptop and clicked Youtube.

When I scrolled down to select a calm playlist to listen, to a song popsped up on the screen.

It saysid "you are ready to move on(Playlist)".

It iwas perfect.

Yes, what isI need right now is "to move on", n." Not from relationship problems or a miserable job like others, but from my habits of procrastination and anxiety.

If I want to escape from this distressing loop of "next time"," I have to start right now.

There is no "another time."

# I seem to be repeating the phrase "right now " for" many times.

Can you suggest me alternative words?

They really help me to improve my writing.

Moments of fFrustration

It might be good to obey title capitalisation rules, though this is just a minor issue.

After a tiresome day ofwith an English exam, I come back to my room and throw myself onto my bed, tired andbut yet somewhat relieved.

(1) Alternatively: "After a tiresome day of English exams", if there was more than one exam.
(2) I'd recommend the use of "but" here, since "yet" suggests that you're introducing a contrasting clause.

Troubling doubts are still lingering in my head but I try to forget how I did in the exam; there's no use of thinking back on what I did right or wrong - it would only worsen my overthinking.

(1) Alternatively: "I try to forget about my performance in the exam".
(2) The phrase is "think back on".

I have been giving the same excuses for many times, saying I would try harder next time.

I would be more disciplined next time.

"Discipline" is a noun. "Disciplined" is the adjective.

However, that "next time" never comes and I have been stuck in this endless cirycle.

(1) 'That "next time"' is singular, so it should be "comes" and not "come".
(2) Alternatively: "I have been stuck in this vicious cycle." "Vicious cycle" is a common expression as well.

I still have a math test tomorrow.

A determiner is expected here.

And I have two options to decide on - right now or next time.

(1) "Two" is plural, so it should be "options".
(2) The expression is "decide on an option". Alternatively: "And I have two options to choose from".

I repeat to my self: there's no reason to be doubting myself or regretting what can't be fixedundone.

"Fixed" is understandable, but in this context, "undone" might be a better choice of word.

I should do something/it right now if I don't want to feel like this in the future.

The object in the phrase "I should do" is missing.

I took myake and open my laptop and clicked (on) YoutTube.

(1) You've been writing in the present tense this whole time, so for consistency, "took" and "clicked" should also be in the present tense.
(2) "YouTube" is the proper capitalisation.

When I scroll down to select a calm playlist to listen to, a song pops up on the screen.

It says "you are ready to move on (Playlist)".

Yes, what isI need right now is "to move on", not from relationship problems or a miserable job like others, but from my habits of procrastination and anxiety.

The phrase is "what I need", similar to "what I require", "what I want", "what I said", etc. Perhaps you meant to write "what is needed right now is...", but since this phrase doesn't tell us who is the one with said need, it's still better to clarify with "I".

# I seem to be repeating the phrase "right now " for" many times.

Can you suggest to me alternative words?

Strictly speaking, "suggest me" is ungrammatical, though it may be slowly becoming acceptable due to growing usage. For now, though, I'd still recommend writing with unequivocally correct grammar.

After a tiresome day of the English exam, I come back to my room and throw myself onto my bed, tired and yet somewhat relieved.

Troubling doubts are still lingering in my head but I try to forget how I did in the exam; there's no use of thinking back (about) what I did right or wrong - it would only worsen my overthinking.

I have been giving the same excuses for many times, saying I would try hard next time.

I would be more disciplined next time.

However, that "next time" never comes and I have been stuck in this endless circle/ vicious cycle.

I still have my math test tomorrow.

And I have two options to decide - right now or next time.

I repeat to my self: there's no reason to be doubting myself or regretting what can't be fixed.

I should do something right now if I don't want to feel like this in the future.

I took my open my laptop and opened, clicked on Youtube.

When I scroll down to select a calm playlist to listen to, a song pops up on the screen.

It says "you are ready to move on(P (playlist)".

Yes, what ismy need right now is "to move on", not from relationship problems or a miserable job like others, but from my habits of procrastination and anxiety.

# I seem to be repeating the phrase "right now " for many times.

Can you suggest me (some) alternative words?

"At the moment", "currently", "this time" are some options that I can think of right now lol.