There is also thing called "expected watchtime" ... try to make your first 10 seconds of video interesting,use some highlights from video. Intros are usually boring and people skip it which is bad because even if they watch video till the end you have still unnecessary few seconds down. its about how much your viewers "hook" on your video because whats youtube loves most is watchtime and keeping viewer as long on yt as possible. After you upload a video it will be suggested no matter you small channel or big but bigger than more suggested. If all 5 people clicked on video watch like 70% you will keep getting suggested traffic.If they close very soon its bad for you ... I once uploaded 5 different videos 5diff accs, and subs from 120-800. All videos got like 4-8 suggested views immediately some videos died, some good to this day. you will get almost everytime some suggested views unless you some fresh account with 100 and less subs uploading first video. I think this is the hardest part about it, youtube will send real people to your video immediately and those ones are the most important coz those are people from similiar keywords and should be interested in your video ... so if someone right click away youtube think is just bad or i dont know ..noone knows its more like random sometines haha
This is still very bad solution and youtube algorythm was and is very dumb , first coz on your video can click random guy just got catched by title or thumbnail but after he open video he may not searching for this type video and leave. But for you can be bad for rank or suggest.
I tested it like month ago with fortnite compilation . I usually dont do those its not even monetizable i think and yes those channel with fortnite compilations are already big fishes but with this method i tried to make everything quality and catchy. It was some big fortnite streamer clickbait to achieve big CTR and first i put the 10-15 clip that was from the clickbait title, you are almost 70% sure that they will watch at least first clip coz after all they clicked just because of it. Results were slightly better i uploaded same video 3 times edited to not be discovered by YT for some duping. Its was for sure better but it ended in like week and traffic never came back.
I think you should give a try ranking tags , start with long tail. get vidiq and in search bar just type random names that you could name your video until you dont find enought with low comp. and at least some volume. Ranking tags is much more undercontrol and you can never get deranked from day to day. On the other hand with suggested if you can make really good video and build a chain people that watch it a lot you can even get viral with sugg. But if you want more undercontroll and dont maintain it much.
I know its a mess but i hope helped. I dont have this from anywhere but experiences.