Hey In general: fighting (depending on your dream surrounding) always relates to feelings of strife. Either on the inside - in regards to the collective (like trying to fit in) - for acceptance etc.
Travel is common to indicate where you are (what new things you want to explore) on your life journey.
Animals relate to your own behaviour/instincts/emotions.
Dreams symbolism is personal. There are always the collective meanings of symbols that can be applied, but it comes down to how you feel about a symbol,
For example your skateboard. That's very specific & it depends on how you look at skating. Does it exhilarate you (or did you once have a terrible skating accident?). Extreme opposites, but I'm using this example to show how it can differ per person.
Same for spiders: scary? Or intrigued?
For this dream:
Where were you when you were sitting on the ground? What was the environment?
How did you feel in the dream?
Was it light or dark?
What season was it when you were outside?
In general I feel this dream is about your own (life) journey. You are making progress and doing it all on all strength (skateboard = means of moving forward. Making it move with your hands). Were you going fast? How did you feel while moving?
The kitten seems very significant. The animals are relating to your inner instincts. It's a kitten, so it's still rather new to you. I'm applying the kitten towards using and applying your intuition here in making life choices.
Cats are very feminine symbols, but you are male. So I feel the interpretation of cats and intuition (magical knowledge) would fit better (still a feminine quality btw). Have you been starting to listen more to your inner self (possibly for about 7 months ago)? Trusting more to where this guides you?
It's still sleeping though. So it might take something more to fully awake your inner knowledge. It's there, but on the background.
Is the interstate the same thing a neighbourhood? The surroundings give you insight on the theme/topic of your dream.
A semi is a car?? Even though you are moving on your own strength there's still a race. The colours of this car (orange & green) remind me of "fixed power". Who are you racing against? The common outlook people have on what succes is?
But then there's the turn: where are you headed? Following your gut feeling (cat) or will it be the fast car? (Succes as perceived by the collective).
The kitten wants to get away now. Into the bushes (back into the mystery/magic of the unknown).
Either way, the kitten is not yours yet. (You don't understand it's mystery yet/perhaps you are not listening enough to it).
How did you feel about that in your dream? What was your overall feeling of the dream?
Just some thoughts on the symbolism & the feel of your dream. I mostly feel it's about who you are on an inner (soul) level versus what you think of what society wants you to be/you should be like.
Ps: I asked if you were in your late teens because it has a feel of trying to gain full independence/living life how you want it to be/trying to break free.