I did something similar but iPhone and an app called Crane(only available for rooted iOS. It lets you make many instances of each app). First video I ever made on that channel hit 100,000 views by boosting it with some accounts.
I warmed up all accounts watching niche videos and switched IPs with airplane mode. I then uploaded the video to YouTube. I went into each account, and searched the keyword and clicked/watched the video along with some engagement. After that, every new video I would just watch from the front page since I was subscribed to the channel from that first video and browse feed traffic is way better. I tried to balance the CTR though, and not do a crazy amount like 90%, but kept it around 30%-40%. Everything stuck and my video exploded and has around 100k views however, I wanted to go into another hot niche at the time.
Did the same thing on another channel. That channel exploded too really fast in like 2 days and had around 1 million views within a week or two but then something very weird happened and felt like my channel died completely. All views dropped to 5-10 views per hour when each one was getting 300 views and over per hour. Now I don't know if that was caused by the botted accounts(I stopped sometime before the drop off happened) or if it was a word like SEX that I used in my thumbnail and the channel was flagged(the drop off happened around that time like 2-3 hours after uploading that video). When I contacted YouTube on Twitter, they said my traffic was being checked and that everything would go back to normal, but of course they talk out of their ass most of the time and don't know the real reason. I've uploaded a few more videos after that but I couldn't get past 4k views even though the videos had high AVD and high CTR so I decided to abandon that one too.
Then I made a third channel in a different niche and that one blew up on it's own without any fake accounts so I decided not to risk it since all videos blow up immediately when I upload. I've been thinking about giving this another shot on a new account and see how it goes this time. Also note that I was using only a handful of boosting accounts. I believe if the thumbnail is good, and the video is decent, you won't need that many accounts to get that initial boost. OP said he had 1500 impressions which brought about 30 organic views, that's really really low. You need some decent content for this to work at all. I also think that iphone is a lot better for this type of stuff rather than android.