Uploading same video, multiple times.

Because my niche is fully covered by youtube videos (there's like 4-7 videos in serp), I had to move to youtube, as I barely get any traffic from Google.

I had a youtube channel created 7 years ago (was uploaded 4-5 videos from America got Talent, 4-5 millions views and over 10.000 subs). I've changed the name, url/username, deleted old videos and I started uploading a single video multiple times - I just changed some keywords in title/description. So far I have 250 videos uploaded.
I got over 75.000 views since first upload (March, 9) but in the last 2 months I can't pass 600 daily views.

What's the best approach?

- how do I make my video unique with every upload (is that even matter)?
- what if I make new channel(s) - uploading the same video?
- should I buy views/comments/likes in order to get more attention (if so, where from)?
- is there any automation bot I can use if I want to bulk upload (like 100 daily)?

Thank you for any advices.
PS: I am a newbie in youtube.

You should try uploading in new channel and also you can always use good views and likes services from a reliable smm panel. This helps a lot.

Ok, let's say I will upload the same video on other channel(s). What should I cosider before doing that?
I am afraid to NOT lose the old channel, aka shadowban.

How do I make my video unique with every upload?
Should I buy some old channels/gmail accounts?
Should I use proxy?

Never tried any of these. I am pretty new to youtube.

Use CapCut or other similar app .

Isn’t better? Ok more hard , but effective

Reedit the videos if you wish to upload it on the different site

Is there any way for this?

Uploading same video, multiple times.​

some tool that changes automatically the video ?

Same video but uploaded on different channels

It is a method to to generate views on a video content within viral replica uploads,knowing the basic stand to improve uploads with earnings. Some period are not certain for traffics /views if good thumbnail not attached when posting.