Trip to the wWoods

Title, so capitalization necessary.

To be exactprecise, it wasn't maintained at all.

Each one of the wooden tables was covered with slurs written in black markerSlurs written in black marker covered each of the wooden tables.

Yours is correct, but I wanted to include a correction showing how to change a passive sentence to active voice. Active voice is engenders concision and is considered easier to read when writing fiction.

The spots for fireplaces were watered down by thefire pits were wet from rain, as well asre the rocks which used to surrounded them.

'used to' does not seem appropriate here.

A bit deeper in the woods ran a small stream which bifurcated ____ and in a few miles completely faded away, creating the swampy area to the northeast from Mereford.

What did the stream bifurcate? I believe 'bifurcate' is a transitive verb and requires a subject.

It wasn't swift-floatwing nor wide, so looking for any bridge there was to no availdifficult.

'to no avail' is what you add after phrases. E.g., "We looked for a bridge, to no avail."

To cross the stream you had to simplysimply had to jump over it.

Style here, not grammar. In other words, what is simple? The act of jumping, or the requirement? I would place the adverb before the word or phrase you wish to modify with it.

Usually I compromised with their lack of stamina and I walked at the same speed as them, but this time while I was talking with Clyde we had to lose our focus (?) and overtook Scott and Tobias.

Removed second 'I' because it was unnecessary.

Not sure what you meant by 'lose our focus,' though. Why would they have to lose their focus? How is that related to overtaking Scott and Tobias? I would answer these questions and rewrite for clarity.

"Bro, let's wait for those lazy bones here," said Clyde and. He sat on a fallen trunk.

This one's a complex matter of clarity. So you have a quotation, which Clyde 'said,' and that's perfect.

But including 'sat' in the same predicate can be interpreted in such a way that the reader will read that Clyde said, and also 'sat,' the direct quotation. On a fallen trunk, no less.

Most people will understand what you mean. But if you're writing stories, and you want them to be easier to understand, I recommend breaking up those verbs into two sentences for clarity. For prose writers, clarity is king.

A 'fallen trunk' is also often called a 'log,' by the way.

"Oh I just love this motherfucker," he said and moved slightly to the right to find a more comfortable place to sit.

Look at my previous correction, it can be applied here too.

August lasted like two or three months for me with all its blank and muddy days.

'Like' is a good discourse particle for conversations, and its use here is correct. It also might very well be in keeping with the voice you're trying to achieve in this writing.

However, generally, if you're writing stories, I recommend writing with more certainty. 'Like' here functions as a hedging word, so I would cut it.

You could have felt a mild but yet cold breath of autumn on your skin.

Tautology here. 'But' and 'yet' mean the same thing. Use one.

The rainy days and cold evenings started to rule and burden me.

This sentence is beautiful!

My strong desire to free myself from the prison of the summer's numbness switched to the other.

Yours is also correct.

"nNah, I don't feel like sitting here and freezing to death," I said and checked the time.

Again, you can apply my above correction about dialogue tags here.

"yYo, what do you care, stupid?

We need to be together, you know," he said, but I was already on my way.

This is all correct, but I would move your dialogue tag [... ," he said ...] after your first sentence.

"yYo, and don't spill the good stuff,".

Yours is correct, but 'yo' is usually used as a greeting or to get someone's attention, so it's strange to have a conjunction after it here.

Hhe shouted from afar.

Punctuation issue, I'm sure this was just a typo. So:

"Yo, don't spill the good stuff," he shouted from afar.