bad at tags

Looking for people who are fun, No high pitched voices hahaha, I play a big variation of games, I also have game pass so can play anything on that, im new to youtube but am constantly trying to improve, if you want to check out my channel its: Q142 Please reply on here or add my on xbox:Q142

So I've dabbled with the promotion feature directly from YouTube a little and I gained some views but not really many subs. One video I featured got up to 6k views but 1 or 2 Subs, this cost me around 100 bucks to run this campaign. I'm wondering has anyone found success using this feature? If...