I need one because every time I show my hiking videos to my friends, I can'twas not able to share the feeling of walking in the mountains.

I can't put my fingers on it but somehow it feels unnatural to put it like that. (Something to do with "every time... I can't ...)
If I had to guess it's probably because in English I can't do something is a state and not an action so it feels wrong to associate it with a specific time clause like every time. Or it could be the tense. It'd feel more natural to have the whole thing in past tense.

I would have said:
I need one because even though I can show my friends my hiking videos, they don't capture the feeling of walking in the mountains.

TMost of the videos I've taken in the past were almost stuck in one placewere stationary / taken from one standpoint.

The tense of your verb already indicated that it happened in the past.

The only changeIf I wanted to capture a different scene, I could make wasonly movinge the camera with my hands, not my feet, b. Because once I started walkeding there video would be a shake in the videocome jittery.

Thus, the videos missed many beautiful views and ithey looksed like Ias if I was just enjoyeding the scenery and flowers cozileisurely, like in a garden.

Cozily is more like 温馨，温暖，引申义有空间小的意思
Leisurely 是悠闲，我觉得比较適合一点

I'm a little excited and looking forward to receiving my express parcel and trying the camera on my next hike.

快递的话 we usually just say parcel or package

I need one because every time I show my hiking videos to my friends, I can't shareconvey the feeling of walking in the mountains.

The videos I've taken in the past were almost stuck in one placeationary.

The only change I could make wasI could only movinge the camera with my hands, not my feetbut I couldn't walk, because once I walked there would be a shakeing in the video.

Thus, the videos missed many beautiful views and it looks like I just enjoyed the scenery and flowers cozily, like in a garden.

This is really good!

I'm a little excited and also looking forward to receiving my expresspackage and trying the camera on my next hike.

The videos that I've taken in the past were almost stuck in one place.

The only change I could make was moving the camera with my hands, not my feet, because once I walked there would be a shakemotion in the video.

Thus, the videos missed many beautiful views and it looks like I justed as if I enjoyed the scenery and flowers cozily, like in a gardenstationary (?).

I'm a little excited and looking forward to receiving my express delivery do that I cand trying the camera on my next hike.

I need one because every time I show my hiking videos to my friends, I can't shareproperly express the feeling of walking in the mountains.

The videos I've taken in the past were almost stuck in one placealways stationary.

The only change I could make was through moving the camera with mby hands, notbut not while my feet, because once I start walkeding there video would be a shake in the videoshake.

Thus, the videos missed manyleft out a lot of beautiful views and it just looks like I just enjoyed the scenery and flowers cozily, likeas if lazing around in a garden.

I'm a little excited and I'm looking forward to receiving my expresspackage and trying out the camera on my next hike.