I feel like this paragraph in particular seems to have the problem I'm talking about. Although, without context it seems a bit off.
You could have provided the context, then. Either way, showing us that passage does help.
Skiyomi made two excellent points about paragraphing and repetition that you should definitely take to heart. The latter goes with my advice from before about reading your work out loud to yourself; doing this allows you do hear how the sentences flow, and it will help you notice any repetitive sentences.
You're right about things happening quickly - many different actions and events take place in quick succession in your paragraph. When this happens, take time on each event, describing the sights and sounds, how characters feel, how other characters react. You had the right idea with having the protagonist look around and take in their surroundings, so continue focusing on their perceptions, the things they notice as they act and react. Try incorporating all five senses when you can. Describe where the characters are, what time of day it is, what the weather's like, what they can hear and smell. Describe the crackling of the lightning bolt, the static it produces on the protagonist's hands or in their fur. Describe the protagonist hunching, squaring their shoulders as they charge. Describe the frustration and anger of realizing the enemy had gotten away. Describe balling a hand into a fist, the satisfying
smack as it makes contact with a furry black Poochyena muzzle, and the beast's subsequent grunt and whine as it sscampers off.
Adding these kinds of details not only slows the pace of a story, but it also adds colourful details that can really bring a reader into the story. Just saying "I punched the Poochyena" doesn't bring the reader into the action - it doesn't tell them much about what's going on or how the character feels. However, if you show the reader what it feels like to punch a Poochyena in the face, show them how the Poochyena reacts, then that one punch can feel
real to them, making them feel like they're right in the middle of the story, seeing and feeling and smelling and hearing everything the protagonist sees and feels and smells and hears.
Another general piece of advice is to vary the length of your sentences, especially depending on what's going on. Sudden thoughts work well as short sentences, which you did in that paragraph, and it worked well. In action scenes, if a lot of things all happen in quick succession, using short sentences can also convey that these actions are all happening very quickly. Longer sentences are good when things are calmer, whether it's describing a place or a character's internal monologue.
Also, be careful with punctuation. For instance:
I arrived to the clearing and looked around, I spotted a couple Poochyena loitering around Rain, so I ran towards them at full speed and tackled one Poochyena.
The first comma doesn't belong here. If both phrases on either side of a punctuation mark can stand alone as its own sentence and still make sense, don't use a comma. For instance, "I arrived to the clearing and looked around" is a complete sentence. This means you should use a period.
“GET THE HELL OFF ME YOU STUPID MUTTS”.
With dialogue, remember that punctuation always belongs
inside the quotation marks. Also, whenever a character (or group of characters) is being directly addressed, there should be a comma right before or after. For example:
"Hi, Susan!"
"Are you ready, kids?"
"John, you are an idiot."
This means there should be a comma right before "you stupid mutts." Punctuation, especially commas, can be pretty tricky (I still make mistakes with them!), so you should definitely take time to look up how to use them properly.
It can be a lot to take in, but these should prove to be some good tips on adjusting the pace of your story. Remember to start a new paragraph every time you start a new idea, read your story out loud to make sure it's not repetitive, take time to describe what's happening in a story, and brush up on the many rules of punctuation. I hope this proves helpful, let us know how it goes!
~Psychic