Subscribe to his own Channel : How ?

Hello, I tried to get 1000 subscribers with my own youtube account

The first time I didn't use any proxies, I just started to subscribe to my own channel, when I hit 120 subscribers, my subscribers count was blocked and the next day everything dropped


The second time : I used PVA account with private proxies and multilogin app ( A software that give you unique fingerprint for your browser) everything drop within some hours !

Third time : Just did youtube exchange on YoulikeHit and addmefast, everything drop within 1 day

Now : Thinking about using multilogin + residential proxies + create my own account, do you think it will work this time ? ...

How do you go about it? It may be that you keep on subscribing so quickly. Why not give some days interval before you subscribe again.
Perhaps , YT crew could be monitoring the acct to know how people frequent your page.